When I visited my son and his family, my 4 year old grandson, Tyler, often got in bed with me early in the morning. One morning while he lay face to face with me on the pillow he sheepishly asked, "How come some people get wrinkles?" I told him, "as we get older some people get wrinkles."
Later that morning when he saw me putting moisturizer on my face he asked, "What are you putting on your face, Nan?" I told him it was moisturizer so I wouldn't get wrinkles. He quickly says, "How come it doesn't work?"