I happily confess to liking my daily shower and am happy to pay for the privilege at whatever campsite through small increase in ticket cost or charge per shower but it doesn't have to be hot, cool to tepid is fine to get the job done. I can be in and out, hair and bits done in a minute or so but am always amazed just how long some people take when there's a great long queue waiting (Just what are they doing in there ? !!)   Same comment on toilets too thinking about it.

Chris