I believe that Chiropractic Education is very rigorous and intensive and that individuals who complete the education program should be awarded a Doctoral degree upon completion. Just like Dentists and Doctors, so too should Chiropractic practitioners receive a doctoral degree when finished with school. Any education field that requires over 2 years of school should award the graduates a doctoral degree.
The typical applicant to an accredited chiropractic program has completed a four-year undergraduate pre-med program or has a BS degree in one of the life sciences. They then next must completed four-five years of chiropractic education and clinical training. This is comparable to the four-year course of education for a medical doctor degree.
Yes, people who go through school and achieve a chiropractic education have worked extremely hard to get there, and have worked just as hard as a regular doctor. They know every injury that can occur, and know ways to adjust the body to fix and heal all the different injuries.
No, chiropractic education is not at all rigorous enough for successful candidates to receive a doctoral degree upon completion. Chiropractic stuff is pretty much close to junk science. Basically, it's a fancy title for someone who paid a lot more money to become a physical therapist. They are not real doctors.
I really depends where a student studies chiropractic education to determine rather or not a student will end up with a doctoral degree upon completion. Within the United States it seem to be a possibility, but not necessarily a rule of thumb. In other countries it may not take as much education to practice.