what needs more discussion?
from a girl's perspective, this can provide income when other options are not available, pay is too modest or outright preference. I think it is safer than working as a club stripper or in a peep show. It will satisfy the same vanity and lust for being the centre of attention, even a sense of power. For the inadequate, it may offer some sense of worth. It may be to fund a habit or college. Ultimately it is about an income. Your LIVE for whatever it is you want out of this.
For customers, mostly it can be expected it will be about getting your rocks off. There was one guy last night having a tug and begging the model to help him

Cheapskate! (But she did anyway, which was nice of her - without taking her undergarments off). She came across as quite practised and there was already some poor guy basically begging for marriage the night before. (I hope he reads this and wakes up to himself!)

I've already seen a little of what the medium might offer, but no other relevant experience to draw on so everything above is speculation, not really red pilled.
If you need it spelled out, the role of girls is to provide the customer a service he or she wants, or a couple wants, for a fee.
I think it is a great opportunity to develop this scene. The basic interaction can be made more fun with modern game.
I think he meant more discussion about the quality of the girls....a little manly banter!