
Quoting
jumanji
Well..... I don't know where in NY you live, but my daughter and her fiance live in the sticks of CNY. 2 BR (needed for when they have his son) apartment runs them 850/mo. Utilities not included. So, utilities, food, cars/insurance/maintenance, health insurance all on top of that. He also pay CS for his 6yo, and they provide what the kiddo needs on top. $300/mo isn't even half of what they would need if they were to have custody.
I really think you're being a bit myopic in your beliefs/expectations.
I got significantly more than $300/mo from my ex, and it all went to the kids (2). As did almost all of what I made. My "big" purchases for myself? 3 pack of underwear from the supermarket.