This is an inferior version of American Graffiti.
"Happy Days" was made on the heels of the semi classic film about high school kids in the days of the late fifties and early sixties.
Whereas "American Graffiti" had some charm, "Happy Days" was totally about "hatefulness".
The glorification of hoodlums began early, and despite what anyone involved in the series proclaims, "Fonzie" was always meant to be the star. The first season is proof of that.
The entire show was just a means to dehumanize young men who were too blond or pale to be accepted in the seventies, and that is the history of the seventies in the U.S.
There just isn't anything else in the show. It is supposed to be a comedy, but it's just an exercise in hatefulness and prejudice.