I wouldn't wear just a towel but I have visited the facilities in pyjamas before and if someone else was just wearing a towel it wouldn't bother me at all, in fact I would probably have a good laugh if their towel fell down!
most people at the site we go to wear jim jams or a rope,
My word, you go to some strange sites Johno!
I guess I need to check my spelling in the future, but if I gave you a laugh fran1000 the mistake done a good job, your comment certainly made me smile, just where one would wear a rope I can't imagine.
Johno