Ironically, for thousands of years the Master/Apprentice model of education was the traditional way to gain knowledge, trades, skills. The real tragedy is that educational institutions have convinced the world they are the only valid source of learning. From your statement, you believe that if one has the knowledge, they should be able to prove it. I like that way of thinking but sadly, education is a big business industry and that would threaten its livelihood. Interestingly, many medical schools are now integrating clinical experience (hands-on) with the basic sciences from day one. The clinical and residency portions of the journey to become a physician is in fact the Master/Apprentice model of learning. Sadly, one has to be burdened with hundreds of thousands of dollars of debt. I like the way you think but if you follow the money trail to answer the questions, greed will win. I predict in the not too distant future, schools will offer the professional doctorate of prostitution PTP.