That's absolutely not the reason. It started out that way, sure, but it's not why it's done now. It's done now out of basic tradition (father is circumcised, s

That's absolutely not the reason. It started out that way, sure, but it's not why it's done now. It's done now out of basic tradition (father is circumcised, so son is too), conformity (his peers are all circumcised, we don't want him made fun of), doctor advice (fewer infections, easier to keep clean), and plain old cultural inertia. It's slowly dying out but I expect it to stick around another several decades.