this. thousands of years ago, circumcision historically was done for a few reasons...

• it was cleaner and reduced infections... as daily bathing was more rare, not having a flap meant not getting gunk built up under the flap, meant less infections
• it supposedly desensitizes the head, allowing the guy to last longer in bed.
• it was thought to reduce masturbation, because reasons
• with one religion in particular, the "practitioner" literally removes it with his mouth. sometimes he even eats it.

compared to today's circumstances, if you're not doing it for a serious medical issue, you shouldn't do it.

oh, and some guys get cut so tight, that it literally restricts how big you can get during an erection. assuming you have good blood pressure, and the internal tendon (or whatever it's called) isn't excessively short, your erection can be bigger when you're uncircumcised. i'm not a monster or anything, but a couple of girls have even commented on it... they didn't even realize i was uncircumcised until after i wasn't hard anymore.