Most of the escorts I know simply love escorting. Money, sex, trips, friendship, being appreciated, knowledge, experience, etc. Obviously I'm talking about men who decided to do it because it was their choice and compared to other jobs they had it gives them a lot of free time to enjoy life while making a lot of money.
Wear and tear? Try working as a store clerk and get ready for boredom, work in an office and you'll worried and busy even after 5 PM when you're home.
Obviously in a relationship an escort won't be available all the time even if he's open with his partner about it. Life is about choices!
Exitus acta probat
Only the good ones like you like you last so long specially now in this competitive market!