I am definitely part of the minority here, but I am from the US and I will NOT be altering my son.
Since this is an opinion thread, I will share mine as I have several reasons for leaving my son intact and hope that more people in the US begin to evolve away from permanently changing the anatomy of their kids.
1) His Dad isn't cut. Nope. Here in the US, my giant, muscular, sexy, manly man is 100% uncut and his penis rocks. As a PP said, they all look the same when erect, but as yet another PP said, don't they all look kind of weird all the time anyways?
2) I like uncut penises, but IT DOESN'T MATTER WHAT I LIKE!!! Aesthetically speaking, I wouldn't alter a baby's appearance just for the sake of how it looks. I prefer men to have dark hair... If my son is born a blonde, I wouldn't color his hair, etc. (You get my point - it isn't about what I like...).
3) Sex with an uncut penis is better for both of us. I hate thinking in terms of my son sexually pleasing a woman (or hell.. maybe even a man) one day, but this is real life and hopefully he grows up to have a fulfilling life in all spheres... I wouldn't want to hinder his ability to have great sex. I've had sex with many men with altered penises and just one with an unaltered penis. Once I had sex with that unaltered penis, I haven't stopped for 7+ years! Meow!
4) We are not Jewish, nor are we Muslim. We are both agnostic, as we are not entirely convinced by any religion... So no doctrine will mandate the permanent physical state our son's penis, and we like it that way.
5) Cleaner? Please. I am sure my vagina would be "cleaner" if I had my labia removed. Is that enough reason? I clean myself well and regularly... I think all people with access to clean water and soap should practice good hygiene. As a parent, I will teach him to wash his penis... And his armpits, and his butt crack, and behind his ears. His dad's penis isn't dirty, he's never had any infections, nor has his life been complicated by being in his natural state. Thats is such a puritan, old world way of thinking.
6) STD's come from sex, not foreskins (Guns don't kill people, people kill people). Having unprotected sex with an infected person spreads STD's, don't blame the penis. Wearing a condom is SAFER, less painful, less permanent, etc. than cutting off the skin. I will teach my son to wear one. Every single time. (STD point is now rendered pointless.) STD protection is NOT a valid excuse for circumcision.
7) Isn't medically necessary... You know, unless it ever is. I am not having an epidural or a planned c-section because it is not medically necessary (unless it ever is)... That is my attitude toward medical intervention. In the US it is way too commonplace and we don't let our healthy bodies just be.
8) Irreversible. He can have it cut off one day (if he wants to). However, he cannot have it put back on if he wants to. How about if I let HIM make his own choices regarding what permanent and unnecessary procedures he has done to his body? Sounds good.
9) Can't find a good reason to do it. Oh, most other people in the US do it? Is that the message I want to send my boy? Nah. It's small-picture. Most of the people in the WORLD don't do it... What be so ethnocentric to think that our way is best (and without good reason)?
So for us, it isn't even a discussion and I am VERY lucky that his father isn't arguing against me on this. I know my view is a little different than the vast majority, but I hope there is a shift in attitude here about arbitrarily anatomically changing our kids without cause.
My tiny opinion does not effect you or anyone else... Please do not break my ribs if you disagree. Muchas gracias.