The wife was taking swimming classes at a local college. She described it as basically being communal. Each shower area had small dividers, but was in a larger communal shower area.
I would say she was self conscious about it. Her being in her fifties and the majority of the women there where college students. The whole shower situation is what got her to start trimming her pussy. She noticed that the majority of them where clean shaved or trimmed to almost nothing. She felt her full bush made her stand out and look old. So since then my wife has been keeping her bush trimmed