Then I'll understand them first.
I'm actually very perceptive of those around me, so if I saw that my methods weren't working, I'd adapt. And not blindly, either, trying random solutions until one of them produced the results I wanted. Chances are, I'd have been examining them from an early age. What couldn't be observed would have be learned through research and questioning. The end goal isn't to have my ways followed at all costs, it is to have my children to grow up successful, confident, and independent, whatever it takes. People respond to incentives, and I think the right combination of support, motivation, and pressure should be enough to have most of my expectations met. They should come to know me not as some authoritarian drill sergeant type figure, more like a quiet but strong presence they could count on for assistance and guidance.
MBTI and other assessments should also play a part in finding their strengths and weaknesses. If my parents had been aware that I was a developing INTJ with high verbal and logical intelligence, they could have introduced me to careers I might enjoy early on, and what type of background knowledge and skills it could take to get there. There's also the factor of exposure to a variety of different areas as well, since you've got to have options. While my mother didn't stress school grades much, she did take me to the science museum, library, zoo, and foreign cities often, along with having me attend private piano, swimming, craft, and shotokan lessons, all of which I'm still grateful for to this day.