Originally Posted by
goji
The sandbox schemes introduce very little additional risk. Most of the virus mutations already get into Thailand over the borders from Myanmar or Cambodia.
Thailand either needs to control movement at all borders, or not bother. Controlling movement everywhere is difficult if sooner or later someone will take a bribe to let people through.
With covid widespread in Thailand, keeping controls now is like shutting the door after the horse has bolted.
Also, opening a Phuket sandbox is one way of testing out what works and what doesn't in a small & self contained part of Thailand.