It varies from child to child. If someone's child is in some rich boarding school, I personally think they should be allowed to continue on at that school unless it is financially infeasible for both parents to live apart and still afford it.

If the 'bare minimum' of raising a child is $300/month, then I don't think they the child should necessarily be forced out of their school and into the public school system or something just _because_ that's the bare minimum. I think that these factor should be taken into account.

disclaimer: I am _not_ a rich person, nor do I have any children.

{edit} That said, if the monthly child-support is determined to be really high based on the child going to an expensive school, the child-support payment should be reduced if the custodial parent decides to pull the child out of that school for a cheaper one {/edit}