Bobo, btw, what is your evidence for the fact that current training is mediocre?
It's like saying 'degrees are mediocre'. Yes, some are, many are not, some are excellent.
Compared with no training at all, very few indeed - if any - confer no benefit to the future teacher once in the classroom.
And I find the 'better educated = respect' thing very odd, and very far from my day to day reality (the parent who declared that he was better than me because he had a degree, whereas I was only a primary teacher, was the only time I have ever had to wheel out my educational history - and that remains an isolated example, over my years in teaching).
IME, I am respected and trusted by parents in the school environment because I know about teaching, and I know about their children and their progress. In the same way, I respect and trust my plumber when he is examining my heating system, because he knows about plumbing, and I respected and trusted the medical professionals who advised me about DD's birth, because they knew about obstetrics. Of course, I, like my plumber and consultant, can lose respect if I fail, make a bad mistake, or pretend to know something that I don't. But I expect, and get, respect for my expertise, rather than my title or qualifications.