They have a schedule that indicates who leads the lessons every day.
No age limits. First years bond with older students. There's no strict colored uniform, so lots of students make friends without knowing what house the other one is in.
Imagine McGonagal joining a few times, and feeling shy around all the youngsters, but everyone has so much fun and beg her to come again every day. It's special days every time she's there.
Poppy and Pomona join any time they can. They always come together and giggle just like teenagers around them.
Flitwick LOVES it and earns lots of compliments from whoever leads the practice which makes his day. Everyone knows if he was praised this morning for his moves, he'd happily complement everyone's moves in his own class.
Hagrid makes horrible dad jokes, but everyone hysterically rolls on the grass, sometimes work-outs end early.
Snape would never, but he secretly asked for advice on back pains and exercises in his room.
Dominique Weasley - moodboadr
Victoire Weasley - moodboard
"Do you like boys or girls?"
Albus: Boys
Dominique: Girls
Molly II: Yes
Lorcan: Not only
Rose: No.
Polyamorous!Lily Luna Potter
(I imagine her with a slightly different haircut, but let it stay)
Charlie will never tell you this, but Roxanne is his favorite niece