in one way or another your paying for sex no matter what anyway, as long as its something they enjoy doing since escorts can pretty much pick and choose their clients most of the time there is nothing wrong with it.
Prostitution is the oldest profession in the world pretty much and it should be legal everywhere, then i can be monitored and governments can get money out of it as people will do it no matter if its legal or not, its just much safer if its legal and monitored rather than ignored for the most part.
Anyone who would completely cut of contact with their child are stupid, you should support your children no matter what they choose to do with their lives and it would probably be the attitude of not being 100% supportive that would push them into that profession in the first place.