Is it normal for a son to ask his father to see his penis?

It's not uncommon for young children to be curious about their bodies and the bodies of others, including parents. However, as children grow, discussions about private parts should be approached with sensitivity and respect for boundaries. Parents should encourage healthy conversations about anatomy and privacy, using age-appropriate language and context. If such questions arise, it's important to respond in a way that fosters understanding while upholding appropriate boundaries.