Let`s not get too explicit in here, okay.
It is a pretty big deal if you have a kid - people honestly DO go out of their way to ask about it if they suspect you might not be having your son circumcised. And they will "share" their opinions on it with no reservations. Both about how you`re doing your kid a disservice, and (in the case of women) they will tell you how they`re absolutely terrified of so much as seeing one that hasn`t been done.
There is this weird talk of massive amounts of smegma, which I`ll be honest and say I have never once come into contact with. If you bathe properly (as I would certainly hope most everyone does... and if you don`t, I would think that the state of the penis would be the last of your worries.) it is pretty much never a problem. I also have to laugh as girls produce 5 times as much of the stuff as guys. But this huge myth has been spread that guys who are not are absolutely terrifying... And trust me, mothers DO ask about it when you have a son.