What is your opinion regarding child support?

For this question I am asking about child support for divorced people, not single parents with children born outside of wedlock.

The way I understand it child support is simply a mathematical equation. If the divorced parents have 50/50 custody of the children, but one parent makes more money, that parent has to pay the other child support. If one parent makes much more money, then the percentage probably is not just for the child’s needs, but also helps the other parent with expenses for themselves. I guess part of the reasoning is the child should not have very different living circumstances from one house to the other?

But, if you are the one making double your ex-spouse, do you think you would resent handing him/her over a percentage of your pay, rather than a number that is calculated to figure the needs of the child?