They kind of already aren't
Don't know where you live but at least in the united states, these people are on a public registry where everyone knows who they are. They aren't allowed to live or go in certain areas. If they don't answer their mail and re-confirm their address with the local authorities once every few months they could be charged with a felony.
And that's on top of whatever prison sentence they serve, which is usually quite severe.
Don't know where you live but at least in the united states, these people are on a public registry where everyone knows who they are. They aren't allowed to live or go in certain areas. If they don't answer their mail and re-confirm their address with the local authorities once every few months they could be charged with a felony.
And that's on top of whatever prison sentence they serve, which is usually quite severe.