There is a huge trend my way to Home School which parents think will be the immunity from the world - well - staying with that analogy - Just as bringing up your young child in a Bacteria/ Virus free environment will make him a very sick child as he cannot develop his immunity, so too with schooling. Because at some point in the future he will have to face the "world" and he wont have the coping skills.
I thought it must have been discussed here before - somehow I didn't pick it up when I searched !