I would point out to GWG that prostitution wasn't typically illegal in any sort of manner for a long time, except possibly in very highly religious nations. It's called 'the oldest profession' for a reason. Though he's certainly right in that out old family was crappy. We're better off not associating with that piece of the past.
Well, "criminal" is a lot easier to type over and over than "associated with prostitution". And while it is the oldest profession*, it is also one of the least prestigious; criminals and brothel-owners probably have pretty similar levels of respect among the community, and the "probably" is mostly hedging my bets in case we have forgotten that, in this culture, prostitutes are a vital part of some religious ceremony or something.
...Which is probably a concept we shouldn't think about too much.
Pearl diving might give us some good cash for a while, but since hardly nobody can breath that long underwater we will have to do all the work ourselves, which shouldn't be our goal.
Whatever we do, we should focus on our gifts. Our major gift right now is the ability to function well underwater, which can be used quite lucratively by pearl-diving. (It could also serve as a bonding activity between mother and son.)
Once we have some other skills or possessions or something, we can exploit those.
*Prostitution is such an old profession, even some species of monkeys practice it! They exchange intercourse for grooming. It even functions on a system of supply-and-demand; more females means they get groomed less for their services.
This has been your Mildly Creepy Fact of the Day.