Something else to add to
@cavalier973 ’s fantastic summary:
My introduction to fantasy was not through Appendix N, video games, fantasy novels, movies, or from D&D. Instead, mine came from Thundar the Barbarian, Blackstar, Galtar, Herculoids, and He-Man. I’ve always been a huge animation fan, and those cartoons really sparked the imagination. That’s the fantasy that I truly love, and I don’t think any other system gets close to it.
I’ve mentioned in other threads that I think D&D’s genre is magical fantasy in a USA that had existed from the Bronze Age until a medieval or post-apocalyptic time. The assumptions of vast, untamed wildernesses with treasures and ancient civilizations, of free farmers who are definitely not serfs, of kings without divine right and more democratic societies, and of adventurers being less European knights and more prospectors, explorers, treasure hunters, and cowboys is unique. Erol Otus’ art just sells and cements the non-medieval European influence to me.