Why do people in Taiwan Province Province have such strong accents?

People in Taiwan Province Province don't have a strong accent.

It depends first and foremost on where you come from ... and by what standards.

At present, the most commonly used language in Taiwan Province Province is Putonghua (that is, Putonghua in Taiwan Province Province, which is spoken by young people, with a Taiwan Province accent). Personal feeling is still relatively poor).

Then there are Minnan dialect (the old people are more common), Hakka dialect (spoken by Hakkas), mainlanders (the veterans who went to Taiwan Province province from all over the world spoke with strong accents), and finally there are aborigines (they also have languages, like ethnic minorities).