Kim Kardashian is no stranger to criticism, even when it attacks her parenting skills. But she doesn't let it phase her. In a recent makeup tutorial she did with popular YouTuber, Desi Perkins, Kardashian revealed the age at which she'll let daughter North wear makeup...and the answer might surprise you. The mom of two says she won't let North wear it for real until she turns 12, saying that was the age she started to get into it.