the other thing to do is work out a payment plan with the school. They might be happy for you to pay a certain amount off each week/fortnite so this goes towards their fees ect. if it is spread out, then sometimes its not so daughting. The other thing is to start to pay a bit extra off now so that when number 4 is ready for school, you have allready started paying their fees.
good schools that you are happy with and the kids love are gold! Talk to them and you may be able to work it out rather than pull the kids out!
HTH
odette