"Meant for kids" also had a really different meaning when Star Wars came out. All that "meant for kids" meant back then was that it didn't have nudity or gratuitous gore.

It always changes, too. Comics were specifically for kids when the Comics Code took effect in the 50's and into the 60's, but as those kids aged so did comics. By the late 80's and early 90's, comics definitely weren't kids stuff anymore. Spawn was comics grown up, but so was Batman and the X-Men and pretty much the whole stable of comics' evolution from that time.

Star Wars always appealed to more age groups than just kids, but it also grew with the fans who had all those toys as kids; part of its struggles have been because its identity is kind of trapped between misunderstood fan service nostalgia for adults and a marketing engine trying to grow a future fan base through cartoons. Rebels might be designed for kids, but Andor sure wasn't, as one example. A big part of the problem with Star Wars at the moment is that you never really know which one you're going to get... or if they're going to try and make it for everyone, and make no one happy.