Retro, no you know I wasn't alive pre the UK joining, so no I have no first hand experience of what you speak of, however that world as it was no longer exists, and it's folly in the extreme to assume we leave and we go back to some perceived 1960's greatness, because the rest of the world is not like that anymore even if WE could, so it's not a possibility. It's not about people being dinosaurs or too young and lazy to vote, it's about clear sight about what is and isn't possible and acting in the best interests of the country as a whole.
Neither side covered themselves with glory in the Referendum, all were sly and duplicitous and the electorate was ill prepared to understand what was required of it, and it's no use saying stay or go, or anything as simplistic as that, this is too important.
I can see why you are all so aggrieved, I would be too if it was reversed, but we have to at least call a temporary halt to this before it tears the country any further apart than it already has.