Easy Assumption: Nothing to Learn from Younger People

"Because I wish I knew what I know now when I was X years old, and I was a bit of a fool at X years old, the person who is speaking to me and is X years old doesn't have anything to say that I could learn from."

Definitely Wrong.  It is precisely the people that I don't understand that I have the most to learn from, even if I don't like their politics.