system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Why doesn't Tony Stark have all the Avengers fitted with suits, with advanced weapons and personal AI, such as Spider-Man in Homecoming?
gpt
I think it's more so that Tony thinks of Peter as a son he never had. He wants to provide him with as much as possible to keep him from killing himself, going as far as to make a built in training system on how to fully utilize the suite.

 He doesn't do this for others because they are all fully grown adults who already have their "thing" or their process of doing things and a suite would just screw with it. He also doesn't feel as responsible for them as he does for peter. 

If you want to argue that vision is also a child, he's already made out of vibranium so a suite wouldn't help there. As for an AI for him, well he kinda already is himself?