Why do Hong Kong, Macao and Taiwan still use traditional Chinese characters?

Chinese characters have been basically stereotyped since the Tang Dynasty, and traditional Chinese characters have been used until the Scheme of Simplified Chinese Characters was promulgated and implemented in the 1950s after the founding of New China. Of course, there was no traditional Chinese character system before there was a prescribed simplified Chinese character system. Hong Kong, Macao and Taiwan have the same roots as the mainland and have always used traditional Chinese characters. ?

Chinese characters are the most important carrier for the popularization and inheritance of traditional culture and modern culture. It is reasonable and necessary to popularize culture, change the situation that culture is only enjoyed by a few literati and social managers, and let the people improve their cultural quality and participate in economic construction and social management extensively. After all, there are too many irregular variants, vulgar characters and so on in Chinese characters. So in 1950s and 1960s after liberation, China introduced simplified characters and simplified characters. Hongkong, Macau and Taiwan Province were not under the jurisdiction of China at that time, and traditional Chinese characters were still used until now.