I find all the angst about little girls in make up (when it is for a stage show, I hasten to add) hysterical.
I was a ballet dancer pre-children. I started when I was tiny, was hooked, and that's what I did.
I wore full on stage make up for shows and festivals from the age of 6. I had minor shows and exhibitions where I wore a dash of blusher and a bit of lippy from about 4 probably.
I had to have exacting standards for dress, hair, where ribbons were sewn on shoes, how they were tied etc.
In RL (both the and now) I don't touch make up - can't actually stand the way it feels, but put up with it as part of the job before.
I still dress like a student - jeans (more often than not with holes in/worn through - they are jsut getting comfortable at that point!) and tops, trainers/comfy shoes.
Imo, and ime, you are either someone who will get drawn into the world of makeup and dressing to please other people, or you are not. I have worn things for stage work that I would not dream of wearing in RL, and it didn't bother me as it was for the job.
I do understand why it is not a good idea to promote ideas of 'looking pretty' to,little girls - I have 2 young dds, and I battle constantly with dd2 against the shit that a sexist world is training into her (mostly ideas from school, sadly). But I still maintain it is perfectly,possible to wear full stage makeup for a reason (ie looking 'normal' once stage lights are on) and not make little girls think it is a necessary way to live their life. It isn't about making them loom 'prettier', and anyone who tells them that should be corrected.