Well I didn't retract my foreskin until the age of 11. It didn't occur to me to do so before then. When I did it wasn't dirty, infected or nasty, just healthy and natural.
I'm very glad I didn't have my parents obsessing over my cock from infancy. They just told me to make sure I washed behind my ears, lol!
I suppose it's all a question of what you accept as normal. An uncirucmsiced cock doesn't take any particular care. It's no more difficult to keep clean than your nose, your feet, your armpits... or any other part of your body.