Because what could possibly go wrong by pretending that a global domain of speech could be carved up by parochial rules?

“One of the reasons Mastodon was founded was to allow different jurisdictions to have social media that is independent of the U.S. … People are free to choose to have their account on a Mastodon server whose policies meet their needs.”

https://techcrunch.com/2025/08/29/mastodon-says-it-doesnt-have-the-means-to-comply-with-age-verification-laws/