Depends on the rationale.
For the most part, yes, I will tell them that I practice evidence based medicine and that includes vaccines. If you refuse the XYZ vaccine because you heard it causes the child to grow a 3rd ear, go find a doctor who will agree with that.
If they or a close relative had a significant side effect or a (semi)legitimate religious reason (don't ask, I won't go into them) I will consider.
