On: Ask HN: Should I pursue an ML career with good pay or a dream to teach abroad?

I think your post gives away the answer and you're only looking for confirmation.

Honestly, I can't give you advice financially as I am roughly your age, but if I were in your position I would follow my dream without any hesitation.

Perhaps considering lacking which of the pursuits would hurt you the most in 10 years can make your decision easier.