DS is due for his immunisations next month and DD is due for her 4yo ones at the end of the year.

I am really not wanting to let them get them from now on. So if i didn't, what would that mean for when they start school and have not had the full course of immunisations? Will they not let them go to school (or pre-school for that matter?) What if i wanted them to go to a private school, would it matter to them?

Please note: I am not looking for a debate here about immunising children and i don't wish to state my reasons either. I just would like to know how it will affect them when they go to school.