Very little. When stretching, they get to talk a bit with whomever is near them. On vault, they're usually in line near the coach at the vault table so that they can hear the coach's comments and don't goof around. They move down to the end of the runway just before their turn. There are enough beams so that everyone's either busy or catching their breath between turns. On bars, some can spend a wee too much time around the chalk bucket [no offense to our hosts here] but there are enough bars, coaches, drills, that if they're not working hard, it's of their own choosing. And on floor, if they're not doing a routine, they're tumbling. Usually 3 girls on the floor at any given moment: One doing a routine, and one tumbling on a diagonal, and one along a side of the floor into a resi. They know each other's routines well enough to avoid crashing into the one doing the routine, as she has the right-of-way. Add in the tumble-trak and the rod floor, and there's not a lot of standing around.
That said, we used to be in a gym that suffered from this problem. I recall the time 3 girls spent over 30 min on vault and did three vaults each. Rest of the time was sitting and talking. Fun, huh? Just what you're paying for. Talked to another parent yesterday who had a similar experience at a different gym. They also moved on and are happier for it.
The girls still have plenty of time to stay friends. It's not a rigid or military atmosphere, just well-organized and thought out. New girls seem to adapt to the flow fairly easily, because it's logical and the coaches make it clear what they should be doing and when. Of course, that doesn't stop us (parents) from complaining that they should be doing less of this and more of that, right?!
