I think homeschooling is a fine alternative coupled with enrollment in after-school activities where they are able to interact with other youths such as karate or girl/boy scouts. I would advise it for those who want to advance their child's placement by a year or two without shelling out thousands for a private academy.
But if we walk in the light, as He is in the light, we have fellowship with one another, and the blood of Jesus, His Son, purifies us from all sin.