Initially, leaving school has some advantages such as the money. It might be an advantage at first, but really, this is not. It is very likely that those people will be paid as less as possible. The advantages of the money are good at first because they could get their own flat, their own space and totally independience. After a while, when you became an adult, the money will not be enough to have a pretty house and support your family.
It is said that a career is quite hard, but there is nothing impossible. University students get used to study and is not as tough as the people claim it. After four or five years studying, they will be postgraduated. Their career will have just started and you will have more possibilities than other people. The mainly reason to study a career is to get the job wich anyone like the most. If you love your work, you will never have to work anyday of your live. Besides, those kind of jobs are better paid than the others.
To sum up, wether students choose keep studying or not, depends on the person. There are some people who loves studying, but for the others it could be a punishment. People have to do things wich make them happy or confortable. My own opinion is that people have to discover waht they want by their own, to know what to do with their futures. Althoug there is a huge inconvenient. Usually, they are not ready to make such a big decision, they are too young and they make mistakes! But even with this, there is a whole live to fix them.