I have many friends with nipple piercings.

You can’t tell through a shirt.

Nobody is scrutinizing the shape of your nipples through a t shirt

Rock Climbing is a sport that gives you a lot of control over risk. Once you understand the technical safety aspects, you can evaluate risks of a particular course of action.

Climbing mellow routes with a top rope is quite low risk.

It’s a longevity sport, at crags and gyms it’s pretty normal to see people over 50 still at it.