If there is a medical reason to do it when the boy is under-aged, which is relatively rare, that decision can be made by the parents (and the boy if he's able), but a decision such as this can be made individually-not done as a routine procedure on newborns. But by the time the male is an adult, he would realize that his foreskin is an integral part of his penis and overwhelmingly wouldn't agree to have it cut off.
If a male wants it done as an adult, that is up to him. There is no medical reason to do it on a newborn. No one has the right to cut off perfectly healthy tissue without the owner's consent. Leaving a male intact is about his own genital integrity. What's the big fucking deal about being circumcised? These anti-circ nuts are as looney as anti-vaxxers.
