Shirtless Experiences as a Kid

Jus curious
Maybe my lifestyle was different but I would like to something

I was always shy about going shirtless. Whenever we went to the beach or pool I never took my shirt off. But I always noticed other kids running around freely without shirts with their parents.

Everyones lifestyle is different and I respect that but is this something that is allowed and ok with jus like that in most cases.

I was always kinda jealous of these kids and the best part is their body images where all different but it didn't seem to matter to them