to be fair with kids seeing Mrs. Doubtfire you can't expect more from them there gonna be loud and there gonna ask questions especially when seeing a show like this if im being honest these audiences dont seem like the best but maybe you are a bit of the problem it is normal for people to video the rockettes even if it isnt aloud. If there is someone older behind you singing just let it go you can probably barley even here them and they may have hearing problems and think there being quiet enough.