I agree, however some form of school needs to be done for the children to graduate on time, and be able to pursue their goals as adults.... I believe a good parent who graduated high school can find enough friends good at Math, biology, or English to help them homeschool their children! Of course some states require more education than others.
With our firstborn, it was definitely a case of "you don't have to push the river." He was eager for skills and knowledge. With a little encouragement and sufficient opportunity, he pursued it on his own.