In China, social media is regulated and enforces that children be shown content that is generally related to STEM or other achievements. No stupid dance videos, no memes, no stupid trends - it's "check out this algorithm I wrote!" Many of the top-trending videos on TikTok would actually be banned.
Is it malicious? I think so, though not everyone agrees, but the outcome is the same both ways: I would say it is indoctrination into stupidity, not an ideology.
Remember, these are the future soldiers who could, potentially, fight China in a Taiwan skirmish. If they only know how to communicate by meme, can't spell anything, have no sense of achievement, and all dream of being YouTube stars, you've won before firing a single shot.