How is this different than not requiring a license at all? It seems as an arbitrary line. Either people have a right to drive or they don't. If they don't it is

How is this different than not requiring a license at all? It seems as an arbitrary line. Either people have a right to drive or they don't. If they don't it is their problem if they break the law and have their license taken away. If they do there's no need for a license.