[pclmulqdq]

Taking a $0 salary for a few years is feasible for most rich people. That's why the FAFSA (financial aid form) also asks about assets.

[tyoma]

Or they could just have their kid “adopted” by a friend and avoid having to list parents income: https://www.propublica.org/article/university-of-illinois-fi...

[jefftk]

And the CSS profile, like FAFSA but for fancier schools, is even more exhaustive.