Most Helpful Girl
I don't believe she is taking her own youth away, she seems to have found something she enjoys. As long as her cause is not a negative self-image/ self-criticism or to get attention from others, I don't see anything wrong. Just make sure that she is not piling the makeup on to the point she looks nearly fake. Makeup can be a form of self-expression, as well as art. I personally enjoy putting on makeup and taking good care of myself, but I do it for me, not for others. Your family should notice that with all the things people her age could do but shouldn't do, an affinity for makeup does not seem bad at all.