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Of course, but that's always been the case with YouTube, they arbitrarily enforce whatever rules they want. In this case, compliance is fairly straightforward but seeing as the platform is ever changing, there's no guarantee you won't eventually be enforced.
Sometimes they even enforce rules retroactively on videos that were fully compliant at the time, going as far as striking channels for doing absolutely nothing wrong. I think the best way to protect against this would be to add a (13+) disclaimer at the beginning of the videos
This isn't a case of "Youtube arbitrarily enforcing rules". Youtube got caught harvesting children's personal data. They broke COPPA (a US federal law), and the entity "arbitrarily enforcing the rules" is the Federal Trade Commission.
This is ~serious shit~ right here. Youtube's managed to get the FTC to blame content creators, and that's why everyone is panicking.
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