Circumcision may result in a decreased incidence of urinary tract infections.
Circumcision may result in a lower incidence of sexually transmitted diseases and may reduce HIV transmission.
Circumcision may lower the risk for cancer of the cervix in sexual partners.
Circumcision may decrease the risk for cancer of the penis.
Circumcision: Medical Pros and Cons - Infections, Disease, Hygiene, Cancer - MedicineNet
And the most important of all? Girls I've known who have been with an uncircumcised guy say they stink to high heaven and all that implies. And it's a rare person who eats foul smelling food.
It also results in decreased sexual pleasure experienced by the man
plus the girls that have told you about the smelly guys were most probably stinky ones themselves.
2/3 of the world does not circumcise at all. and does not stink at all.
If the man was circumcised as an infant, how does he know what sex would feel like if he remained intact?