Yeah, it's creepy.. not my thing either...but that's 'supply and demand' ain't it?
...but look at this from a certain angle. If you're a middle-age client, seeking a 'freshly legal' provider, 18 or 19 yrs... What are you doing in the first place?
In the on going struggle to legitimize the sex trade in general, there's always going to be deviant side to it bringing it down. Up to and including 'that we dare not speak of'... knowing it's wrong one looks for way to work around those boundaries with such 'roleplaying', ... hiring a 25year old with a tight youthful healthy body, and tell her to wear a Catholic Schoolgirl Uniform...of course she's going to call you Daddy to fit the role and fill THAT kind of demand... is it wrong?... well, "legally" yes because soliciting is still illegal; but it's one less charge for 'that we dare not speak of'.... "morally and ethically", depends on the age disparity... a late 20s client has a more in common with a freshly legal provider, than a 55 year old would... so why else would a 55 year old seek out an 18 year old?...
Again, not my thing... my personal rule is a "10-15 year variance" from my own age, so I connect better with them.