Liberalization of knowledge

Why is it that only people who have to medical school can be doctors?
If the passed the same rigorous examination even though they have not had formal training shouldn't they be allowed to practise. The examination already tested their knowledge and clinical skills. However why is it that the exams is limited to only a few? The more people in a field the richer it will be and with that amount of competition. Prices will be driven down and quality will go up as doctors try to outdo each other. In the old days that is how it was done. There were medical schools to speak of so people are apprenticed to a doctor help the person do all the menial tasks in exchange for knowledge and skills and when they are ready off they will go to the Royal Colleges and take their fellowship exams. I believe the current and this old system should be used as both as it strenghts and weaknesses but since they are there why not use them all?

I am back

I've finished my examinations and passed them,
I am happy for maybe a grand total of two seconds because this is merely a small battle in the grand scheme of things. As I move to phase three of the Failure Defense League objective of reforming the way we see things there is a sense of excitement and at the same time weariness due to the fact that many times things don't turn out the way we imagine it. I have a feeling that it will like what happened to Abraham. He was a relatively young man when he got the promise that he will be the father of a great nation and yet it took 50 years before he achieved the prerequisite of becoming a great nation: the birth of his son Issac and then he didn't see the rest of it though God was faithful and fulfilled the promise in the end. Same the thing with the Failure Defense League, we feel we have a such a great calling but you know what probably only future generations will see the fruits of our labour and the members of the league will probably die wondering they have fulfilled God's purpose for their lives.