It's a touchy subject for sure...when I had my first I decided NOT to vaccinate after doing lots of reading...but I changed my mind when DS turned 3 and so he and dd are fully vaccinated. So far I have not yet had any unvaccinated dc kids. I simply ask in the information/ consent forms " is your child following the recommended immunization schedule" they check yes or no and so far everyone is yes.

Considering the fact that there have been outbreaks recently due to unvaccinated children I don't think accepting an unvaccinated child would be a good idea IMO.