In reply to the comment below, Lawrence Newman says: "Women can still orgasm after type 2 FGM. The external genitalia are not needed for orgasm. A woman experiences pleasure during penetrative sex, obviously. A man with no foreskin can't feel pleasure, because all the sexual sensation is in the foreskin. The glans penis of the male is almost sexually insensitive."
About parents always meaning the best, that isn't true. I don't know how prevalent they are, but some are the exact opposite. What is more typical is that a mutilated dad will ensure his son is mutilated as well because if it was good enough for him it has to be good enough for his son.