Answer:
If universities were free, low-income families would greatly benefit.
Explanation:
The fact that a college is free can help a low-income family a lot.
As we know, universities cost a lot of money for which families have to save for many years.
If universities were free, those families could save that money and use it elsewhere. They would also save having to borrow so that their children can finish their studies.
In addition to that money, low-income families would have in them a graduate who would get a very good job and could generate a higher income.