This is where you wander far, far away from reality. You have been told, and will readily accept, AND CONSTANTLY REPEAT, that ONLY people holding a certain degree or certificate, defined as needed ONLY by those currently holding such degrees and certification, CAN effectively teach children in PUBLIC schools. Yet, with our own eyes, we SEE private schools using "less qualified" and lower paid PROFESSIONAL TEACHERS to attain BETTER (not just as good as) student performance on STANDARDIZED tests than those PUBLIC SCHOOLS using your "very qualified", certificate bearing, higher paid public teaching staff.
Only a moron would believe that ONLY a master mechanic can the change oil, fix a flat tire or perform a tune-up on your car, yet YOU constantly assert that nothing short of a masters degree permits ANYONE from teaching a 3rd grader basic math skills. This is EXACTLY why we can not allow teachers unions to set the rules, and then "negotiate" how much to pay those that "meet the qualifications" that they defined as necessary using NO BASIS other than their own say so.
The argument ALWAYS used is that the public school teachers are BETTER because they hold fancy, higher level, paper credentials that deserve "reverence" and thus command "higher pay". Yet, the professional teachers (but not as "well educated"), used in private schools, SOMEHOW manage to constantly (consistantly?) produce better educated STUDENTS while spending less money, per pupil, to do that job; IMHO that proves that private teachers, although BOTH less "educated" and lower paid are, in fact, BETTER.