No you're wrong, those people you are referring are not international students, they are F1b visa violators. I have spent over 10 years going over f1, opt, h1, f1 process. It's extremely difficult to survive, sending money to family while maintaining student visa is a joke, it's not possible. If that is the primary importance then i think a Nepali would be better off going to dubai or even qatar, they save and send more money.