My mother also had a degree in education, and had been a teacher before she married. That probably helped her defend her choice against some critics when she chose homeschooling. Back then in the late 80s and early 90s, it was far less common, and people had even more fear of such pioneers.
Now, though, with more support than ever through online resources, libraries, numerous curriculum providers, how-to guides, support groups, co-ops, etc. where parents can pool expertise, I really can't see how anyone except the religiously statist can fear homeschooling.
She probably would have had an edge in arguments if nothing else, apparently it's okay if you're a teacher because you're "qualified" then XD
I'm probably lucky with the area I'm in too, there is a LOT of dissatisfaction with public education.