美國大多數 home school 的家庭都有強大的宗教信仰來支持他們 , 沒有宗教信仰的 home schooling could be a bit tougher
"With the rise in homeschooling across the country many individuals wonder what the motivating factor behind homeschooling is. There are many motivating factors, actually, but one of the most popular is for religious reasons. "
http://www.thelaboroflove.com/articles/do-parents-homeschool-for-religious-reasons