Going back to school - again

What would college life be like if we had the opportunity to relive the four fastest years of our lives after we have settled down, raised a family, and held a steady job for a number of years? Would our professors or younger peers attending college for the first time treat us any differently? Would we have the opportunity to participate in student organizations or even run for the Senate? Would our history class provide us with new facts and perspectives, or would we feel like a representative from that chapter on the beginning of the Cold War? Most of all, would we really want to go back?