From Generation Beauty: When did tweens become beauty experts? by Dianna Mazzone Singh for Allure:
"Preteens have discovered skin care (and fragrance and nail polish and makeup) and—short of taking their niacinamide serum away as punishment for a messy room—there’s very little adults can do about it.
But should they do something about it? Allure spoke to dermatologists, psychologists, and pediatricians—many of whom are parents of tweens themselves—to find out. Maybe that’s why you’re here: Your 11-year-old asked for night cream for their birthday. Do you get it for them?"