I think it is a very difficult thing to control. When my daughters were young, I did not allow them to wear make up at all until they were in high school.
That did not mean that they didn't find a way to obtain some somehow, and apply it after they left the house! Either I would catch them, when they came home and had forgotten to remove it first, or I'd see remnants of hastily-wiped-off "goo."
Personally, I experimented with it when I was in high school, and for the most part, it was just too much trouble. (I was a tomboy, anyhow.) I'm now 63, and I still don't wear the stuff--I have better things to do with my time than "fussing with my face." Anyone who does not like the way I look is free to look the other way.
What I find disturbing is the AMOUNT of this garbage that so many young girls plaster all over their faces. They look absolutely disgusting. Instead of looking like the beautiful young women that they would be without it, they end up looking like 55-year-old hookers who have lost their street corner. If only they could see themselves as others see them, and see their plastered-on makeup in the same light as the body image issue that causes some to develop anorexia and bulimia, they would never want to wear makeup again.
Can you tell I'm an opponent of make up, at all, for anyone? (Except as another person pointed out, for theater and other such 'on stage' activities.)
If the point is to "appear beautiful" in order to---what? Attract a date or mate? Then, plastering all that goo onto one's face amounts to false advertising.
And that's my answer--so I think no one should wear makeup, regardless of age, but certainly prohibited to youngsters.