I just wanted to clarify, a UTI can be life threatening. In infants, parents have a difficult time recognizing the signs of the UTI, since the babies can’t tell you what hurts, which can lead to fever, bladder infection, and kidney infection. Also in men, the signs of a UTI are different than in a woman. My father had to spend time in the hospital because of a UTI, that went undiagnosed and untreated for several days.
Also how easy do you think it is to clean that area on a baby (or have a young child do it)? It is difficult even on a circumcised boy, they squirm and cry and get their hands in the way. The smegma sticks and is very difficult to remove (can even be painful), thus making cleaning even more difficult.