Some jobs provide healthcare, many don't.
Many people here, if they are not educated, are forced to work manual labor jobs. Those jobs will always work you under full-time, so they don't have to give you insurance. Usually that means you have to work another job.
People who haven't lived that life just don't get. It just doesn't click in your head.
You can work 60 hours a week and just barely make rent and food. Not only can you do it, I think most people are. And there's nothing you can do. There is no higher paying job waiting for you somewhere, because you don't have a college degree.
How're you gonna get a college degree when you work 60 hours a week? Hm? You're not. You're stuck. Your best shot, really, is to work up through management. That's why you'll see people working at the same restaurant for 20 years.
They must be so stupid, why don't they get a real job? No, actually, that's probably their best bet.