I think Marvel is getting a bit better finally but they really dropped the ball after Secret Wars.
I'll just mention one title and one problem but there are so many.
Avengers, all the way up to Secret Wars the Avengers books had some measure of internal consistency. They were serious, dramatic and had a certain standard of quality and realism mixed with sci-fi.
After SW the Avengers consisted of several high school students, one in particular Kamala Kahn who has very protective parents. Needless to say it's f@@@ing ridiculous. Is Kamala's stretchy power so valuable and essential to world protection that she's allowed to run around with the top super-villain crime fighting organization in the world?
As if any adult would risk the potential lawsuit that would absolutely happen if they allowed a 15 year old to run around with their dangerous cosmic level villain fighting organization and that 15 year old were killed or seriously hurt?
It's a slap in the face to loyal Marvel readers and an obvious scramble to attract younger readers. What's weird is younger readers don't have money the same way older readers do?
Plus when I was 10 years old reading Fantastic Four and Hulk I remember being just fine with reading stories about adults. I didn't give a flying F about any of the kid superhero teams like Power Pack or whatever.
Ultimate SM is my favorite run ever so I don't have a problem with a story about a young character at all. It was done with respect to anyone with intelligence.