I think the real problem from our divorce system and culture stems from the dads that leave their families...
I know for a fact that my ex would not have paid fair amount of child support without court order. What he is and will be paying is not enough. He left us with nothing because he supposedly was building up credit card debt.
Now because of dad's like him, the courts try to set rules so these left behind mom's with small kids don't need tax payer monies to support their kids. (But I guarantee that the laws aren't set up to make it truly liveable for these left behind moms)
And then some messed up wives that want to break their vows and committment and obviously have no concern for their families exploit those laws and often F. Over the dad's that truly want to be their for the kids and have been out their providing for their families.
It should really be about proofing who the walkaway, cheater was. But not so.