When the MC doing his missions some time he gets fucked as a woman and he loves it ..he got fucked at the party for "money" with the cheerleader, he got fucked at the mission building at last patch before the fight, he is taking blowjobs at the toilets and also he had the option to get fucked at the begining from the cheeleader boyfriend, also he is masturbating as a woman at his apartment..so instead of loosing time masturbating alone he can get clients to make money and fun....so don't tell me it is about a fetish or not...also our MC is neutral good more or less at aligment so he doesn't do cruel mafia jobs all them time for fun ....at least not yet...so the least irrelevant thing to the story is to become an escort/hooker for side money......what are your top 2?
Did you miss the part where he said this is his number 3 most favorite game?
Dropping from 1st spot to 3rd spot over a fetish he does not enjoy is valid
This is like asking why slade wilson doesn't stop with the silly "superhuman assassin" thing to become a hooker.
Obviously being a mercenary for mafia pays better. Heck randomly robbing people pays better.
I am pretty sure this is a fetish suggestion rather than a serious suggestion on how to make money. In which case all the more power to you. Personally being a hooker is not my fetish. I would rather the MC get more waifus
Also he can manipulate his parts he can try making a self-replicate of him self as a woman to fuck him self as a man..or to transform a tentacle of his as a vagina to try fuck it.
The possibilities are endless and they don't necessery change the story...it is for his spare time mostly at night before going to bed