There is a shred of truth in what you're saying, but I think you're generally mistaken. The USA in particular has companies that pratice censorship to support their Left/Right ideology (or push the views of rich people, politicians), but not even Trump can tell OpenAI or Google to turn their model into FoxNews bots.
The kinds of buyers who purchase pre-owned "used" games often CANNOT or WILL NOT shell out $70-100 for a new game. Social peer pressures might impact this (hey poor kid, do you really wanna lose your friends?)
Mobile gaming is a mess. Android is still open, but Apple devices are locked down, and bigG keeps trying to close sideloading.
Subsciption micropayments ads enshittification has hit mobile gaming HARD. Not sure mobile gaming is in good shape...?
MS would love to kill off custom Minecraft clients and servers, and have attempted to turn minecraft into a subscription service but they risk losing their entire community if they go too DRM heavy so Minecraft Java edition has remained very open
It is suspicious to me that "age assurance" is trending EXACTLY as AI agents become capable of autonomously operating a personal computer in the same way a human office worker would.
I'm afraid "age assurance" has nothing to do with "the children".