He's 4 and at least he'll be able to look normal Normally boys have a foreskin. It's abnormal for a boy to be missing a part of their body that they were born with.
Because infections of the penis are several times more common in non-circumcised males. So this child that does not have an infection should have the not-infected part of their body removed to preemptively prevent some possible infection (that apparently there are no treatments for?) from possibly happening some time in the future?