What many people forget is that more GenXers wanted to beat up Kurt Cobain than to listen to his music.
As a late GenX, gas was still leaded when I was a kid. It's usage peaked in GenX years and dropped after that until it was mostly phased out. Biggest mistake human kind ever did. (oops, GP mentioned this).
I went to school with a bunch of these idiots. While there were a lot of intelligent and nice individuals, this was before the "don't be bullys" thing really took off. There was no shortage of uncontrolled assholes running around that thought they could get away with anything. My mom worked for booking at the jail at the time and reported back to me how many kids in the yearbook ended up incarcerated and it was a lot.
1970 was peak leaded gas, but unleaded didn't overcome leaded in usage until 1980.