Really the only thing blocking things like this from existing en mass would be the expense in crafting them.
The concept of the behavior enforcing item can be used widely, and this is a decent version.
In many medieval settings, I don't see this device replacing the headsman's axe or other corporal punishments except for overtly 'enlightened' societies. The rich might get collars, the riff-raff get the axe and the rope.
The Chinese, when attacking a castle or fort, flew kites over the city wall and used the length of string it took to get it there as a measurement to know how far they had to dig a tunnel to get under the wall.