Hahaha really? floorflock ... I don't know anybody that would go to the swimming baths just for a wash - costs too much in my area for starters!
As for socks v bare feet.... personally I don't like trying shoes on without mainly because I like to get the feel of what they will be either with tights or thick socks (so choose accordingly). Sandals? Can't remember if I have or haven't but can see what you are getting at.
Mysterious hole - help please!
To think that London, or anywhere else for that matter, does not belong to any one demographic