I'm circumcised, as part of my Jewish heritage, my dad wanted it done apparently on me and my two brothers (he's on the Jewish side of the family). I think it was just a way of keeping the family's heritage alive. Personally I have no problem with it- I've never known what having a foreskin is like so why bother getting worked up about it? I will add that no one in my immediate family, including my dad, have ever been devoutly Jewish.
To add, as some people have already said, is this actually an issue that needs to be addressing? Who cares whether someone has a foreskin or not? It's not like the baby is clever enough to know what's going on; the nerve endings haven't even developed 8 days into the child's life (8 days is when the child is circumcised in Judaism). Or if you're circumcised for medical reasons it'll obviously be under anesthetic.
Also, here is some interesting info about the health benefits of circumcision:
• Decrease in physical problems involving a tight foreskin. • Lower incidence of inflammation of the head of the penis.
• Reduced urinary tract infections.
• Fewer problems with erections, especially at puberty.
• Decrease in certain sexually transmitted infections (STIs) such as HIV, HPV, chlamydia, syphilis in men and their partner(s).
• Almost complete elimination of invasive penile cancer.