You're acting like social attitudes have only progressed in one direction in that time.
The 70s or 60s kid might be raised in a context of peace and love, anti-war sentiment, then be just as shocked to see Ronald Reagan, low taxes, spending cuts for social programs, the religious right, wars of choice, higher wealth disparity, outsourcing in manufacturing and other industries, privatization, young fascists going on tiki marches in favor of the confederacy, on and on ...
The 70s or 60s kid might be raised in a context of peace and love, anti-war sentiment, then be just as shocked to see Ronald Reagan, low taxes, spending cuts for social programs, the religious right, wars of choice, higher wealth disparity, outsourcing in manufacturing and other industries, privatization, young fascists going on tiki marches in favor of the confederacy, on and on ...