Maintaining a sibling bond is one of the most complex long-term projects a person will ever undertake. For us as adults, looking back at a childhood spent with a sibling can feel like looking at a different life entirely. You shared a dinner table, a bathroom mirror, and perhaps even a bedroom for nearly two decades, yet as the pressures of career, marriage, and geography mount, that shared history can start to feel more like a distant memory than a living connection. When we see our own kids starting to drift into their separate silos—one obsessed with sports, the other with art, both locked behind closed bedroom doors—it’s natural to feel a pang of anxiety. We want them to have that lifelong “built-in best friend,” but we realize that a bond doesn’t stay strong just because you share a last name. It requires an intentional architecture that evolves as everyone grows up.

The first step in preventing siblings from growing apart is recognizing that “sameness” is not the same thing as “closeness.” When kids are young, we often force them into the same activities for the sake of parental convenience. We sign them up for the same soccer league or take them to the same movies. However, as they hit their teenage years and early adulthood, their individual identities begin to crystallize. The tension often arises when one sibling feels overshadowed or judged by the other’s choices. To maintain the bond, we have to teach our kids (and remind ourselves) that the goal isn’t to have everything in common. Instead, the goal is to develop a deep curiosity about the other person’s world. It’s about the “athlete” sibling showing up to the “artist” sibling’s gallery opening, not because they love art, but because they love the artist. This shift from shared interests to shared support is the bedrock of a relationship that survives the transition into adulthood.

Doing it for kids

For parents of younger children, fostering this bond often means stepping back from the role of “judge and jury” during every squabble. If we are constantly intervening and picking a side, we inadvertently create a competitive environment where one child is “right” and the other is “wrong.” This breeds resentment that can last for decades. Instead, we can encourage “sibling-only” traditions that don’t involve us. Whether it’s a secret handshake, a shared joke about a parent’s quirky habits, or a “siblings-only” camping trip in the backyard, these private experiences create a “vault” of memories that belong only to them. This sense of exclusivity is powerful; it creates an “us against the world” mentality that can weather the storms of adolescent mood swings and the eventual distance of moving away for university or work.

Doing it as adults

As adults, maintaining our own sibling bonds requires a different kind of effort: the “low-stakes check-in.” We often make the mistake of thinking that we only need to call our siblings for big life updates—engagements, new jobs, or family emergencies. But a relationship built only on “big” moments eventually feels heavy and transactional. To keep from growing apart, we need to lean into the mundane. A quick text about a song that reminded you of a childhood road trip, a silly meme, or a “thinking of you” message requires almost no energy but sends a massive signal: You are still a primary character in my story. This is especially important in Canada, where the sheer size of our country often means siblings live provinces apart. Distance only becomes a wedge if we let silence fill the gap.

Finally, we must acknowledge that sibling relationships have seasons. There will be years where you are inseparable and years where you are focused on your own lives. The key to not “growing apart” permanently is keeping the door unlocked. If your children see you making an effort to reconcile with your own brother or sister, or see you prioritizing a phone call with an aunt or uncle, they learn that family is a choice you make every day. We can’t force our kids to be best friends, but we can create an environment where kindness is the baseline and where their shared history is celebrated as a unique treasure. By prioritizing the bond over being right, and curiosity over competition, we can ensure that the people who knew us “way back when” are the same people standing beside us in the future.

Tips & Tricks Depending on Age

Since sibling dynamics change so much as they grow, I’ve broken these down by life stage. The goal here isn’t to force them to spend hours together, but to create “anchor moments” that belong only to them.  If the siblings fall under a few different age categories below you can consider a mix of item from each activity or a hybrid that tries to bring to age group activities together.

For Little Ones (Ages 3–8): Building the “Team” Mentality

At this age, the bond is all about play and shared imagination. You want to create scenarios where they are partners rather than competitors.

• The “Secret Language” or Handshake: Encourage them to create a secret handshake or a few “code words” that only they know. It builds a sense of an exclusive club where parents aren’t allowed.
• The Sibling Fort Night: Once a month, let them push the couch cushions together or set up a tent in the living room. They get to sleep there together with a flashlight and a special snack. The “novelty” of the location makes the bonding feel like an adventure.
• The “Joint Mission”: Give them a task that requires both of them to succeed, like a scavenger hunt where the clues are hidden around the house. They have to solve the riddles together to find a “treasure” (like a box of popsicles) that they have to share.

For Middle Years (Ages 9–12): Navigating Different Interests

This is the stage where “growing apart” often starts because they begin to find their own hobbies. The trick here is “parallel play.”

• The Sibling Time Capsule: Have them pick five items together that represent their year and bury them (or hide them in the attic) to be opened in five years. Deciding what defines “them” as a pair is a powerful bonding exercise.
• The “Yes Day” (Sibling Edition): Give them a small budget ($20) and two hours where they get to decide together what the family does. They have to negotiate and agree on the activity—whether it’s getting ice cream or going to a specific park.
• The Digital World Bridge: If one likes Minecraft and the other likes drawing, suggest they “collaborate.” Maybe one builds a house in the game, and the other “designs” the interior or draws the characters. Meet them where their screens are.

For Teens (Ages 13–18): The “Us Against the World” Phase

Teens are naturally pulling away from parents, which is actually the perfect time for them to lean into each other.

• The Dedicated “Car Ride” Tradition: If the older one is driving the younger one to school or practice, make that a “parents-free” zone. Encourage them to have a specific playlist they only listen to when it’s just the two of them.
• The “No-Parents” Outing: Once a season, send them out to a movie or a mall trip alone. Giving them autonomy away from your watchful eye allows them to relate to each other as peers rather than “the big brother” or “the little sister.”
• The Late-Night Debrief: Sometimes the best bonding happens at 11:00 PM in a hallway. Don’t be too quick to shush them if you hear them whispering in one of their rooms late at night. Those “hushed” conversations are often where the deepest secrets are shared.

For You and Your Adult Siblings: Reclaiming the Connection

If you’re looking to bridge the gap with your own siblings, it’s all about consistency over intensity.

• The “Photo Dump” Thread: Start a group chat specifically for random, boring, or nostalgic photos. No pressure to have a deep conversation—just a place to share a picture of a cereal brand you both ate as kids or a funny sign you saw.
• The Annual “Middle Point” Meetup: If you live in different cities, find a town halfway between you and meet there for lunch once a year. It removes the “host/guest” dynamic and makes it a shared exploration.
• The “Recurring Calendar Invite”: Set a 15-minute recurring invite on your phones for a “Catch-up Call” every second Sunday. If someone is busy, you just skip it—no guilt—but the placeholder keeps the relationship on the priority list.

In the end it takes effort from both sides, so if you find that your sibling is not receptive to your overtures, fret not.  Sleep well knowing you tried all you can do and at least, your sibling knows that you care enough about them to make the effort.  Part of it too comes from issues or mental considerations that you cannot control, nor do you have any say in.  Just be aware of your limitations as well as your opportunities.