I usually pair up with the juniors to help them, or share knowledge, or bring them onboard to a task they can drive later on. I work with people in 4 different

I usually pair up with the juniors to help them, or share knowledge, or bring them onboard to a task they can drive later on. I work with people in 4 different continents, in Europe my team is spread around 4 different countries. We manage to interact, remotely. I do not understand why people think being interactions require an office together, there are other ways to foster interactions, it's a culture. If the culture is bad remotely then it's also bad in office, just in different ways, the only thing a remote team loses is the ability of poking someone else's shoulder which is generally good, you don't want interruptions. You want people to have enough slack in their work that they can be called upon for pairing or helping with something. If everyone is so busy remotely that they don't interact anymore then in-person you'd be having issues with frustration from senior devs being interrupt to help juniors. It's the same issue, just presenting itself to the surface in a different way...