Because the way taiwanese government works is its either freedom for everyone all Taiwanese citizens or for none. Because restricting movement of one area group of Taiwanese citizens would make people Taiwanese citizens there feel discrimated against others Taiwanese citizens. Level 3 all over taiwan would “make everyone feel part of same bucket” and none of the demographic Taiwanese citizens would complain in particular. You know freedom for all Taiwanese citizens is the policy here. Such weird policies and rules are the reasons why we are ending up here now.