Last night DH and I went to see the nutcracker, it's stated very clearly on the website 5+.
Beside us were a family, grandma, granddad, mum and daughter. The daughter looked about 3, maybe a very small 4.
The little girl did okay for a while but she kept moving between each of the adults knees and whispering. I wouldn't say it was super disruptive but it was hard to ignore and I really doubt she got anything out of it.
AIBU to think you should just respect the age restrictions on these things and to question why the theatre allowed them in?
Also why on earth do parents take kids to things that clearly aren't age appropriate?