@Hoss to be fair, the "sex work is your only option" seems to be coming from the reality of their situation, the guy is telling them how it is, since, as he said, it will be nearly impossible for someone to give them work, even if under the table.

And also he's pretty clear in telling them that if they go into prostitution they'll be screwed and the girl will be facing criminal charges.

It looks to me that the guy was trying to tell them "don't do it you stupid dumb fucks, you have no way to sustain yourselves", I just wished he did say that directly, even if at the end.