Yes. I was a state-level swimmer in high school.
Relay-swimming or individual? If the latter, I wouldn't consider that a team sport in the traditional sense where you are reliant upon others to win the objective at hand.
By this standard, I could be a dedicated Pokemon enthusiast, and meet a woman who also is extremely enthusiastic about Pokemon. Does that make Pokemon meaningful? By this standard, what isn't meaningful? Surely any subject could be something people bond over, be it sports or Pokemon or street signs.
Yes, it does. Is there something wrong with that?