When there is a lot of money at issue in divorce court, parents have reason to hire lawyers and then get locked into expensive court battles. High conflict in court can be reduced by reducing unrealistically high child support orders. Massachusetts took steps in this direction in 2014.
Existing methods for calculating child support are deeply flawed because they make hypothetical allocations of income to raising children, resulting in divorce orders more than two times the actual cost of raising children. Real families adjust their total expenditures because the children change their lifestyle, but this is ignored by child support guidelines.
All this is explained in a fun and informative youtube video by Joe Sorge at DivorceCorp: