I think, as well, as we age there is a tendency to remember our young selves too harshly: we remember our own ignorance, we squirm a little at how naive we were, how distant from reality were our ideals, and how simple we thought complex issues could be. We regard those earnest croonings of Kumbaya with embarassment because, however well meaning we were, there was a lot we didn't really understand about even so simple and sweet a song as that.