Why don't some people in Taiwan Province Province speak Taiwanese?

Many people in Taiwan Province Province can't speak Taiwanese. ...

Some are Hakkas or aborigines.

Some foreigners joined Taiwan Province Province,

Some of them are descendants of 1950 immigrants from other provinces.

Some of them only know English and some simple Mandarin when they are abroad and return home.

Some people have lived in Taipei since childhood, and Minnan is not easy to use, so it is rarely used. After a long time, they won't talk.

In Taiwan Province Province, there are many people who speak Minnan dialect because the population is mainly Fulao. Describing him as a politician's political operation in the Taiwanese dialect of Taiwan Province Province, to put it bluntly, it is also a consideration of political votes.

By the way, Beijing dialect is actually not authentic Chinese, but a variant of Chinese after the Mongolian invasion in the Yuan Dynasty. Ancient Chinese fled to the south after the defeat, and its pronunciation was more authentic in Hakka dialect, so the Chinese she claimed was only Beijing dialect, not orthodox Chinese.