This is very well accepted in the world of paper publications. But as traffic grows, drivers are increasingly interacting with each other, and the interactions become increasingly unexpected. You need a set of rules to decide what to do in cases of conflict, and you need to ensure that all are aware of those rules. It seems to me this is very true of the Internet too. Hence, a license's first objective is to educate the user.
People argue that there is physical danger in traffic and noting on the Net.
Users should be warned of the dangers, know them, and know what their duties are also. The European Union already prepares a set of directives to ensure consumer protection. Providers of information, and we all are if we have our own web space, must know them. Set up some rules for schools. With the license they can go to an ISP and obtain a connection.