Are guys supposed to shave theyre pubes/hair on their privates?

Sorry for asking this lol but unfortunately growing up never really got taught about this

Ive (M21) realized that no matter what I always have a smell of fish and I was wondering why it kept coming back and someone asked if I shaved my pubes and just the hair in general down there and I don’t

Idk if it’s wierd or normal for most guys to do and was wondering