Even if I don't exercise it at a particular time, so what? Why should I be forced to interact when I don't want to? That just keeps me from exercising some other option that would have more value to me at that particular time.
Eliminating baseball practice doesn't seem like a way to encourage more games :/
I can go to baseball practice, work on my game, and go home when it's over. Or I can ask if someone wants to stay and go for drinks after. Everyone's got the choice of what they want to do. If I love the game but not the people then I'll maybe hang out with a different group instead, or with my partner.
The point behind eliminating these side-effect interactions is that now you can decide when and with whom to interact, rather than being forced into it when you just wanted to get something else done.