Well now, what a good question! As well as the glorious independence and freedom, the amazing job satisfaction that you literally cannot explain to anyone who is not in the business, and of course enough money to be the goddamn richest little student sitting in the lecture hall (he he), escorting gives me an awesome game to play on the tube....... a good look at the men sat around me and decide whether they have ever visited one of us lovely ladies or not. Great game! Especially when you give one a little wink as you get up to leave. Made many a morning on the stinky old tube far more interesting, ha ha ha!