As an infant, he is forced to experience the parent's preference. Upon maturity, the son may not share the same preference. He may later conclude that if it had been left up to him, he would have preferred to remain intact. Parents who choose circumcision for cosmetic reasons do not realize that it cannot be accurately described as truely cosmetic. The word is extremely misleading.
Cosmetic surgery is performed to improve physical appearance without affecting function.
The foreskin, commonly believed to have no purpose, actually has numerous functions and all of them are eliminated when the foreskin is removed. Circumcision is irreversible. Healthy, functioning tissue is amputated from a helpless baby. Many have taken the position that the procedure is a human rights violation. The question is whether parents have the right to consent to an unnecessary procedure that has lifelong consequences.