People, and various media, always make the 1960's sound so great. Believe me, apart from muscle cars and a dawning music scene the 1960's weren't so great, what with the war and all kinds of bullshit from all angles.
By the 1970's the war was over and the bullshit was all worn out. Things just started to happen, big time. Better music and better drugs, at least I think so. Thanks Big Youth for an inspirational cover of what had been a mediocre American pop song.