1.how have social norms changed in america since the decade of the '60s?
2.how does your generation's norms and mores differ from those of your parents? grandparents?
3.in your opinion, why do these changes take place?

For the answer to the question above, most visible changes are connected to political correctness and feminism. The 60s had neither the one nor the other. Since then feminism has de-validated the traditional female life concept and declared the male concept of business the only way to obtain luck on earth. 

The de validation of speech is an appalling catastrophe. PC has sent speech through some kind of "equalizer", condemning everyone to utter warm and friendly words even being absolutely hostile to a subject. A fascist is still a fascist but today speaks like a Buddhist monk. This way he is not identifiable anymore. PC has destroyed a valuable tool which was suitable to express the strongest emotions. Today a CATERPILLAR Wheel has to be changed with tweezers. The tool is dead.