What do we think happened to the Busey kids later in life?

We recently watched the sleepover episode. It may be my favorite of the series. Because it shows that Chad does have serious issues beyond Dewey's ability to fix, but that he's also a little boy who deserves compassion and love like anyone else. Seeing the union, I wonder what became of Dewey's classmates. I like to think Hanson just rides around on a real motorcycle now. But is it crazy that I worry about Chad when he isn't even real? His parents were horrible!