It’s funny how you describe team sports for kids, when I was young it was always used as a system to punish the weak.
Anywho, my favourite hobbies that keep me fit have all been based on not being in a team. Mountain biking was always the best, but now my knees disagree so I’m doing 3D / field archery … I’ve managed to make a new friend through that, so even though I’m crap I still enjoy going :-)