I have many reliable sources that say that the average bar boy sends no money home at all and a few that send money is not much. When they go visit home they attempt to take gifts and money with them at that time.....I think it's hard to know for sure what is really sent home and how much. Many boys do not make that much money and they spend far more than we imagine.

Yes sibling generally know what they are doing and many do it or have done it themselves...I have meet many siblings of the boys doing it too. I agree they usually tell that they work in a hotel or restaurant. And it is don't ask don't tell.....