Agreed! That was one of the things I loved about The Teenage Mutant Ninja Turtles. Before Eastman and Laird started making heaps of money off toy sales the title was an adult comic book. As they were quickly selling about 1 billion dollars in towy it became tweener Kowabunga bullshit. Same with Elfquest, though that title never went full on adolescent.

Back in the day I used to read a rag called Cerebus The Aardvark, Go check it out. At one point it was the longest running comic that had a single continuous story.

It started as a parody of Conan and pretty quickly evolved into its own thing. You will either love it or not.