Asking people to undergo testing and voluntary quarantine is perfectly within democratic bounds of civic duty and anyone with a iota of ethic is more than willing to collaborate. It’s also fair for a democratic society to compensate for any economic loss incurred.
It’s not necessary to use the iron fist except for the most egregiously anti-social deniers, but that’s the same as with the neighbors that refuse to turn down the volume of their music after 24:00