Okay. Traumatic? If this is something desired, will that really be the deciding factor?
Yes, some women find circumcised men more attractive "down there". You should be aware, though, that some women find uncircumcised men more attractive, and more sexually attentive. Again, why are you deciding this for him? This continues to seem absurd to me. In the aesthetic department, to say nothing of the actual sexual effects, this would be like you deciding what hairstyle he must wear when he goes out to meet women. Crooked teeth are a problem that you are correcting. When he has problems attracting women because of his penis let him correct that when there is a problem. If he meets a woman that this is a problem for then he can weigh whether he wants to be with so shallow a woman. Men really do get through life perfect when they are uncircumcised.
Supposedly, there should be a benefit when you surgically alter your son. There is slim to no benefit when you circumcise your son. The loss, though not devestating, he has suffered because of this is not outweighed by aesthetics, imo.
Then, for goodness sakes, why do it with no second thought? To surgically alter his penis when there are at the very least an equal number of women who either do not care or prefer uncircumcised men seems absolutely absurd. This is just one more surgery that can go horribly wrong, and provides no real benefit. The downsides seem to greatly outweigh any possible upside.
Were this to happen to me I would have some serious questions to ask my mother when I found out what I lost. "Why" would be at the top of that list. I suppose we'll have to agree to disagree. Doing something with these detriments when there is no evidence that there will be any problem for purely aesthetic reasons just seems absurd to me.