I live and grew up in Taiwan. Zhuyin is a learning tool taught to all schoolchildren to teach pronunciation. It also happens to be a computer input method because everyone knows it, and the alphabet fits onto a computer keyboard. No adult regularly uses Zhuyin otherwise.
I've recently switched to using Pinyin for computer input because Zhuyin has a larger alphabet compared to Pinyin, and the Zhuyin keyboard on iOS has smaller keys to fit more characters in the same space, making it much harder to type with. The Pinyin keyboard is essentially an English keyboard that spits out Chinese.
I've recently switched to using Pinyin for computer input because Zhuyin has a larger alphabet compared to Pinyin, and the Zhuyin keyboard on iOS has smaller keys to fit more characters in the same space, making it much harder to type with. The Pinyin keyboard is essentially an English keyboard that spits out Chinese.