Over the years Woodstock got glorified and romanticised and became the event that symbolised Utopia. It's the last page of our collective memory of the age of innocence. Then things turned ugly and would never be the same again.
Of course, everyone's parents are embarrassing. It goes with the territory. The nature of parents is to embarrass merely by existing, just as it is the nature of children of a certain age to cringe with embarrassment, shame, and mortification should their parents so much as speak to them on the street.