[HKH2]

> I really wish Chinese switched completely to pinyin

That's like wishing English would switch to IPA because English spelling is wildly inconsistent - which English would you choose? People who speak different dialects can still understand each other using written Chinese, whereas Pinyin is for Mandarin only.

[petodo]

almost everyone using smartphones and computers already use pinyin anyway when they are inputting Chinese characters, it's just redundant at this point, part of tradition without practical meaning

[HKH2]

> almost everyone using smartphones and computers already use pinyin anyway when they are inputting Chinese characters

Cantonese speakers don't use Pinyin.