[imtringued]

That sounds like an incredibly dumb way to solve the problem. The correct solution is to have a mandatory insurance policy for child support that both parents pay in and contributes to their retirement account once the children are adults.

>stupid and vindicative enough that they would deliberately get themselves held hostage, if they thought it would get them out of child support.

It sounds like you're arguing in favor of a broken system. In what world is it rational to get held hostage? In this one apparently.