I'm surprised Winston's mom let you out of her grasp so easily.
I promised to go to the spa with her today. I checked first to make sure it wasn't clothing optional.
Well, yeah. Higher radiation, closed life support systems and long hours in a space suit lead to a lot of skin problems. Spacers want to be seen as tough and independent. The spa is a relaxed place where people can tell you “There's a funny spot on your back. Better get it checked out.”
Being allowed to wear clothes there would completely defeat the point.