Just popping in with my two cents.
I come from a jewish family, however I have not had a bris due to complications that my grandfather had in his later life with his circumcision that has basically put my family off of ever performing the ceremony. Now don't get me wrong, we're not the most observant family by any stretch, but we know plenty of our own traditions and such.
Firstly, regardless of what anyone will tell you about aesthetics and health benefits, this was never the reason for a child to be circumcised. You have to remember the jewish faith is over 3000 years old and back then nobody gave a toss about those factors. However one thing that very observant jews (particularly orthodox and conservative cliques) value is the sanctity of marriage and the idea of sex only after the ceremony. The -main- reason it was originally practiced was to prevent boys from touching themselves and going after the pursuit of pleasure by removing: 1) The ability to easily stimulate yourself and 2) most of the pleasure from the act as back then the idea of following your desires was uncouth and such.
I personally am against the idea (Rare for someone of my background I accept) but I support the right of the child to have the
procedure later in life if he so chooses.