should the first 2 or even 4 years of college be free of charge?

Typewritten double spaced on 8 1/2 x 11 paper, with 1 1/2 inch margins and in font times new roman 12. I need a work sited page, discuss pros/cons on the topic. I choose I feel that it should be 2 years free of charged instead of 4. Its a 5 paragraph essay.