Alceste
Vagabond
It decreases risks of several health conditions and quite honestly the only downside is pain that should be shortlived anyways. Life is painful. This has benefits.
It sounds like a very reasonable choice to give parents.
There are other possible complications besides pain. Infection, for example. And some people react badly to anesthesia. In some cases, too much or too little skin is removed, increasing the risk of complications even further. The only evidence supporting the practice presented so far in the thread comes from the US, where the surgery is very common and the majority of people are rather devout Christians. I've seen equally compelling evidence that the benefits are minimal and matched by the risks from equally credible medical organizations in countries with a lower Christian population where the surgery is uncommon.
It's hardly settled once and for all. Not even the American study recommends universal circumcision.