Dance school owner and mum of two girls (3 & 6) here.
We put on shows every other year, and they are a huge event for the school. We have around 300 students and put on four shows over one weekend, with a Sunday dress rehearsal a month or so in advance. The smallest dancers (3-6yr olds) are involved in both matinée performances, and can be collected at the interval. On dress rehearsal day, they stay for the first 90mins, practise a few times on stage, and then go, and we run the rest of the show, with a play through of their music for timing. Most of the littlies end up staying to watch the senior dancers in their rehearsals- I have amazing pictures of some of my youngest girls recreating what the senior girls were doing onstage in the auditorium. The senior girls are involved in the little ones classes as helpers, so they absolutely idolise them, and the little ones get so much out of watching them. The show is literally the biggest event in the school calendar, and the parents get as excited as the children do. Ours is next year (dates already given to parents), and the kids are already badgering me to tell them what the theme is.
We do ask parents to help out where possible- the show simply would not be able to go ahead without the help. We do ask for parents that are DBS checked or have their chaperone licenses, though it's not strictly true to say everyone backstage HAS to have one, depending on your local authority, though it is regarded as best practise.
The school time rehearsal is certainly unusual, but the school may be struggling to book theatre time without this, and may be trying to mitigate a late start time, after everyone has been collected from school, made it to the theatre and got ready, causing an even later finish?
My eldest has done two big shows and several smaller ones, and loves every minute, and it has done wonders for her confidence. The backstage atmosphere is brilliant- they literally spend the time playing with their friends, watching dvds, colouring, and getting to wear pretty costumes and nice hair.
Dance teachers literally put their heart and soul into shows- we make no profit from our show, as it goes to charity. We all go unpaid for the weekend, and usually end up at the theatre for 13hrs or more both days. No one gets paid, it is literally for the love of giving your children an amazing experience. Yes it's a big commitment, yes there is expense, yes it can seem OTT when your child is in a small section of the show. But that feeling of watching your little person on that stage is unrivalled. And whilst you might not think you will be interested in watching other people's children, to see where your child can end up, through persuing a hobby that is healthy, instills excellent discipline, exposes them to the arts is inspiring.
Dont write it off without seeing what your daughter wants to do- nearly my whole school chooses to be involved in our shows, and to be the one child that wasn't would be awful.
There is a fair bit of negativity towards dance teachers on this thread, which is unjust- we are generally very hardworking people, that invested tens of thousands of pounds into sharing our passion, and are spending hours and hours of our free time choosing and editing music, designing our sourcing costumes and creating choreography for your child's two minutes in the spotlight. We work unsociable hours earn virtually nothing, and never get any thanks. But we do it because we love it, and love your kids too. ☺️