They don't get paid for travel time or vacation and don't have insurance. If they really are being paid under the table, they also don't have the kind of paper

They don't get paid for travel time or vacation and don't have insurance. If they really are being paid under the table, they also don't have the kind of paper trail that's needed to get a loan for a house or car, or an employment history that would help them find a better job. But it's mostly the travel time that kills them, I think.