I don't think of it as smugness as much as a weird ignorance caused by generational separation. When I was a teenager in the 90s I worked and socialized with adults. One of the ways I use to explain how different the crossgenerational socialization made things is that I when I was 15, I hung out with people who were old enough to have done legal LSD. Another is that in high school it was completely normal to run into teachers at shows - I remember running into my therapist at the Fillmore in 1989; I was 14. Me and my peer group were pretty aware of how the world of people of our parents' and grandparents' generations had become our world. We had a pretty accurate model of how it was the same and how it was different. I think there's a HUGE generational gap that starts with people only a little younger than me, who grew up with basically no social or work relationships to older people outside of their family.