> But Hangul is great, I wish Thailand would adopt it.
What a weird wish. Does Hangul even have ways to write the in-between consonants in Thai like dt or bp? Does Hangul even have the Thai vowel sound ื (which certainly has no unambiguous way to be written in English)? And then what about tones? Tones in Thai are not written explicitly, but computed based on a number of factors including character classes, length of vowel sound (does Hangul have a way to indicate short or long vowels?), end-of-syllable sound, and tone mark. If you wrote Thai in Hangul, how would you pay homage to loan words from Pali/Sanskrit? Again, just... what a weird wish!