Like I said on the sister comm: Marvel Adventures comics are more mature than many of the mainline 616 books.
Something that was often said about the DCAU tie-in comics, too.
(that it was more mature than the mainline books, not that they were more mature than 616, although, by correlation, they probably were).
It was often wondered why books for so-called "immature" readers were more mature than the mainstream books.
It's because, of course, that the "mature" books were only superficially mature. Massive gibs and sex aren't truly mature. GRIMDARK themes and wangst aren't actually mature. Deconstruction and post-modernity are not mature. They LOOK mature, and often require a mature audience to handle or understand, but when you scratch the surface off, you realize they're more often than not rotten, seeping, painful, mindless, and have little place in true maturity. Whereas "kiddie" books, without the need to cater to a post-adolescent audience who is desperate to proclaim its maturity, are able to focus on what's actually mature: healthy relationships, mentorship, trust, love, fellowship, responsibility, etc. Paradoxically, it's because they "aren't mature" and can't rely on "mature themes" to shock or entice the audience that they need to rely on mature storytelling, which ends up satisfying an audience who no longer needs to declare its maturity. It is already mature. And it also shows immature still forming minds what true maturity really is.