For example, North Korea reportedly executed a guy for breaking quarantine [1]. China may not be nearly as extreme, but the government is similarly domineering. If your choice is "be quarantined or be disappeared" then you shut up and stay home. But "be disappeared" is not the alternative in many Western countries. Again, just my totally uninformed opinion as a coder sittin' at home. In any case it'll certainly be interesting to see how it turns out.
[1] https://nypost.com/2020/02/13/north-korean-official-reported...