I graduate from Chiropractic college this August and might have some insight. Chiropractic school is an up to four year program after one receives a four year degree. The first two years are focused on hard science which then builds to clinical practice and finally to where I am working in the school clinic full time.
Chiropractic students take four rounds of licensing boards which follow the trend of classes, starting with general science, then associated clinical studies, then finishing off with a large standardized practical board exam (I took this one last weekend). We are also required to complete PT boards in order to perform physiotherapy.
From my experience, very few of the students at my school are med school rejects. The majority have wanted to be Chiropractors since they were young and had a positive experience with one. Several more are second and third generation.
Chiropractic has a poor reputation for several reasons. The first is that the dinosaurs of industry continue to propagate false information to the public and make outrageous claims. This problem appears to be resolving due to younger, more informed doctors coming out of schools. It is also a little known fact that the AMA launched a campaign to destroy Chiropractic in which they were found guilty of illegal practices.
This is largely why Chiropractors are often referred as quacks. We are also held to a different standard from other health care practitioners. If someone goes to a bad MD they think that it was a bad MD and move to the next. When someone goes to a bad DC they think all DCs are bad.
Chiropractic efficacy isn’t well documented because we do not have a large governing body like the AMA to fund research. It should also be noted that based on my short experience working as an intern, I have personally witnessed near immediate reduction of symptoms, sometimes to pain free status.
I’m sure I didn’t address some other questions or concerns but would be happy to if asked directly.
TL;DR:
Chiropractic deserves a chance as a conservative care method. I attempt to dispel some myths.