In oregon, if the child is attending school up to 21 and is maintaining a good grade average, the support, after the child turns 18, goes to the child, not the parent.
I am in a situation, where I have our daughter, my ex has our son, and I pay support to my ex for my son, even though she is banking 100k+ a year, and I am scraping by to support my daughter. I don't have a problem paying support whatsoever, as I have been for 6 years for both of my kids (i was paying support for my daughter who is living with me for a year to my ex), as long as our children are being well taken care of, that's all that matters to me. The only thing that irritates me, is the system here...they require my income, but not hers, or don't enforce to get her income information whatsoever. She has called me a deadbeat, a loser, and just about every name in the book to our kids and her husbands and friends where she is at, and I have been supporting my kids since day 1, the $800 a month (50% of my monthly wages) was not enough for her because I was still living, and still are.