Why would a government subject itself to potential censorship of whatever admin is running their instance? It makes perfect sense for a government to host their own instance from where they can freely broadcast announcements.
And the free market has proven to be unreliable. You’re subject to whatever billionaire is ego-tripping at the top of whatever platform you’re using. The will of the people is nowhere to be seen.
So Lemmy and Mastodon instances are free market solutions, unless a government does it? I don’t even understand what your point is.