I am with you! If you have at risk children (ie - small babies or pregnant mom's), then you should not accept un-vaccinated kids. I just accepted a family of un-vaccinated kids, but only after my 12 month old had his shots. Now, I believe he has had his first round of shots for everything, and I don't have any other kids beyond this current sibling group and my own. It is a touchy subject but you have every right to have that policy in place.