I’m confused about what your paragraph about people wanting fuck college students has to do with the price of college.
The only thing older adults want out of youngest adults, really, is their youth. They have no assets except for their admission letter, and no way to enforce their contracts to pay for college.
Older adults want to exploit that youth. And they youngest adults don't want to be prostitutes, so they go to college, but that doesn't change things by enough.