answer:It’s possible for a society to do just about anything. If they want to raise the school-leaving age to 20, they can do that. Of course, you’d have to ask what advantage there would be in doing that? You can force people to sit in class (sort of), but you can’t make them learn. Higher education is really expensive. Would you really want to spend tax dollars on people who have absolutely no interest in being there? In most states in the US, 16 is the age at which you can leave school and be on your own. I think we set these things because we want to encourage kids to learn so they can take care of themselves when they are in the work world. But we can’t force kids to learn, and we can’t even make them stay in school. So off they go to work, and they don’t care about school at all. I think it would be a pretty bad idea to raise the school leaving age. But I don’t believe in outlawing drugs or alcohol, either. I believe in education to help people learn healthy, successful behaviors. I do not believe you can force people to learn, though. They have to want to. A better option, if you are willing to pay for it, is to offer a free college education to those who can maintain a B average. Students would be given vouchers they could use at any school they can get into, but it would only pay for a certain amount—maybe a certain fixed amount, or maybe a certain portion of tuition. I don’t know. But that’s how I would do it. Use the carrot, not the stick.