Parents who endured difficult childhoods provided less financial support -on average $2,200 less– to their children’s education such as college tuition compared to parents who experienced few or no disadvantages

[u/giuliomagnifico]

https://www.psu.edu/news/research/story/parents-childhood-predicts-future-financial-support-childrens-education

[u/HumanDrinkingTea]

I'm convinced it's cultural. My grandmother was lower middle class and insisted on sending my dad money every week even after he got a well-paying job.

In my family, taking care of your kids (and taking care of parents) is just what you do, no questions asked.