SpongeBob was originally for adults. But adults who grew up on Nickelodeon cartoons. Kids found it funny but don't always get the jokes because they are adult humor. They had to dumb it down for the kids. Before Netflix kids watched cable TV and Nickelodeon, and made a lot of memes about SpongeBob and the Krusty Crab. Every one of them wanted to work at the Krusty Crab with SpongBob and Squidward.