Do I have to get my hair wet, when an Escort asks me to take a shower?

[25 going on 65]

Exactly. It simply changes the dynamics slightly. Very few women are willing to give out sex with zero compensation (be it monetary, emotional, etc).

This is true. This is why I put quote marks around "for free"....it is not free regardless of money. It is a huge investment of time and energy to be with women on a regular basis. This is why paying escorts seems legitimate if it is just about sex. No pointless drama, exhaustion from waiting until 3:30AM for the girl you brought home to finally get down to it, entertaining her before/after or hearing her play on her iPhone next to you in bed when you have to work in 4 hours

However most men also want validation to some extent & an escort will not provide that.