It must be pretty bad as a legit masseuse to have men contact you asking for extras. I don't blame them for going women only.
And there is a lot of woman offering happy endings to ladies as well. I don't have any data but have been told by various people in my city who offer it / get offered. Ladies need a happy ending as well!
Likewise places can change. I knew one legit place where they fired a lady for doing happy endings. Taking went down...... so they now look the other way..... takings back up.
Earning can be low - and tips mean they are making double for the same time - all cash in hand. And just for massaging in a sexy way - less work than a real deep massage.
If advertising on gumtree or VS - over 80% do. Feel sorry for the others - but advertising on gumtree..... need to make it clear - underpants must be kept on and no extras or police will be informed (as it says on one local website - would have to be a DH to then ask)