Study, research, observation, discussion leads to knowledge. Parents are the natural teachers. But what if no one has taught these parents but the parents of these parents, then ignorance perpetuates itself. Any and all of us in the profession of education who really want the challenge. I've been at it for some 34 years now.
Every day is brand new.
Every day I learn something new. Every day, I get better at doing what I love most, teaching. In regular teaching, you and the kids and the parents of the kids are all working from the same point of view, the same value system, the same paradym. Your words mean the same ideas when they land in the mind of those students. The only challenge is to make it more fun, more interesting, more productive.