A lot different than nowadays. Just think about the attitude toward smoking in the early 70s. In my high school, about 55 percent of the girls smoked and over 60 percent of the guys. In hanging on the corner, about 60 percent of the guys smoked, and 95 percent of the girls smoked. Yeah thats right 95 percent of the girls hanging on the corner smoked. It seemed that was the main reason they hung on the corner, because they could smoke there, and not get into a problem with their parents.
There was no internet, and therefore,
no ability to find official definitions of terms one would have heard for the first time. No ability to see what everyone else thinks about various issues. No ability to see what the price range is for various things one realized one needs, suddenly. No ability to have a internet profile. No social media profile. etc etc
There was an overall attitude that young and old were not together, and represented vary different and opposing views on issues.
There was a very prominent anti war pro peace - campaign in the early 70s, that appeared (in message), in Direct conflict with the fighting and gang violence in my city and amongst guys I knew. (We all lived for fighting) Yeah guys were real tough back in those days, except about being drafted into the armed forces. Few wanted to go, but there were some brave guys, who went happily and patriotically.