DEAR HARRIETTE: My children get mad at me because I’m old-school: I don’t care how old they are — I don’t want them leaving home without putting on lotion. I can’t stand looking at ashy skin. It looks bad, but what’s worse is that your skin can crack if you don’t keep it moisturized. They hate it when I remind them. As long as they live under my roof, I want them to do the basic things needed to c…