I don't want to start a war here but...gentlemen don't visit prostitutes.
Have you never seen pretty woman
I didn't think this comment merited much reply either unless it was tongue in cheek. The facts, as pointed out by literature (even without its modern equivalent as you rightly point out in Pretty Woman), is that it is predominantly the hobby of precisely the gentleman.
It is the internet that has questionably brought to the fore a new breed of purring, fawning biped: the fluffie. These simpering beasts, in the grand scheme of things, are usually a well-heeled variant of the village idiot.
Whereas the gentleman does not, and never has, boasted of his maybe temporary lack of female admirers by boasting of his paid substitues, the fluffie runs about with milk on its chin and muck all over itself, proud of the fact that a common prostitute lets it sleep in her lap.
Prostitutes might be highly paid (or overpaid) in their own right. Some might be good at their job; but very few cultures have publicly admitted them into polite society. The gentleman is expected to keep his bit of skirt in its correct station, much as one would a badly-behaved lout of a child, the foul-mouthed workman who nevertheless does a good job in the stables or the yard, or the newspaper delivery boy who pops the morning's newspapers through the back door before everyone's awake. To him, a prostitute is not even of the same standing as a mistress, and has about as much importance in his life as whether his wife tips her hairdresser a tenner a not. If he dicusses it with another gentleman it is with a superior air reflecting the superior station of the gentleman and the beggar station of prostitites.
The fluffie, on the other hand, has no such self-respect. To the fluffie, the prossie is sadly not just someone to romp in the mud with, to taste the delights of the gutter and sample the lowest pleasures of the world, but a goddess on high. She becomes the object of adulation (which the fluffie calls "respect") and all sense of proportion is discarded. As women go, she is an immaculate creature, 10 out of 10 and 11 out of 10 sometimes (as the fool has no understanding of mathematics). Naturally she is above the foul acts he has just perpetrated with her so, being a complete fuckwit, he poses, saying a "gentleman never tells" (oblivious to the fact that a gentleman never pours his heart out over such trifles either, and can actually tell they are both trifles and dirty yucky mucky ones).
In other words, the OP wouldn't know a gentleman I'm afraid if the latter had him thrown out on his ear ... as often happens with the worst and most incurable cases of fluffiedom: for their illness often progresses to such a degree that they can infect the unwary with their raving, and threaten to send the forum stark raving 'fucking' mad..