Well hate to say it, but as of this year,( 2010) all preschoolers in every state need to provide an up to date vaccination schedule for their child at enrolment... I Guess Lulu , that your children were already attending before then....

it's not discriminating really, every child has a right to be safe from diseases which can be prevented

The above information has been attached to every enrolment package I have picked up, over 6 in total....