You in NJ? NJ seems to have some complicated emancipation rules.
When my eldest graduated college, I emailed my ex that I was cutting my child support payments by a third, with which the ex had no problem.
Had the kid immediately gone to grad school, I couldn't have done that. Had she not gone to school, it would be 21 (I think) unless she joined the military at 18, in which case she'd be immediately emancipated.
Had we gone through the courts, I'm guessing the court would've asked for everybody's current financial info and recomputed everything for two kids.
I should've sold her to a Saudi prince when she was 13. Blonde, blue eyed and beautiful - would've fetched me an easy $5 million. That'd be a lot of hookers and blow, I'm just sayin'. My youngest (male) doesn't want me to get snipped - says I should have some more daughters and not make the same mistake as last time. Probably figures his cut of my estate will go up, the mercenary little brat. LOL