It's human, natural, and fun. Human beings are the only species who can achieve orgasm before puberty. What a shame not to take advantage of that. Of course there are dangers, AIDS, various VDs, and pain. The responsibility is with the one who is aware just like in adult sex.
Male humans reach their sexual peak between the ages of eighteen and twenty.
Female humans reach their sexual peaks at thirty. Don't tell me that sex is abuse . Not when there is so much REAL abuse. The family visits grandma. She smells funny, and is sometimes nasty.