Gazrok
A True Doomsday Prepper
Well, folks could always leave the country through other means too (walking, driving, boat, etc.).
A travel ban would have to coordinate all of these to be effective. Also, it really affects a nation's ability to function economically.
For all these reasons, if they simply allowed the quicker tests at the airports, they could nip the problem in the bud, right there, without a lot of inconvenience, and without disrupting commerce, while also ensuring people don't try and circumvent the measures.
A travel ban would have to coordinate all of these to be effective. Also, it really affects a nation's ability to function economically.
For all these reasons, if they simply allowed the quicker tests at the airports, they could nip the problem in the bud, right there, without a lot of inconvenience, and without disrupting commerce, while also ensuring people don't try and circumvent the measures.