My brother never had any sort of issues re: penile health when we were growing up at home. I was probably 16 (he would have been 10) by the time it would have even been possible that some concern with him was kept hidden from us girls due to privacy concerns.
20 yo son, no problems in spite of my ignorant (but gentle and no forcing) retraction when little. When he was 3, he very matter of factly said (in reply to my suggestion he retract for washing), "Mooooooom. It's SUPPOSED to be like that...."
Today he called me from the clinic where he and GF went for routine testing. I said, "For Pete's sake don't let anyone tell you you need to be circ'd" "Oh, hell, no", he replied LOL!
My son is only 2 but has never had a problem.
My father lived to be 74 and never had a problem and was outraged by the widespread almost universal circumcision that happened in the US from the 1950s on.