Agreed, though I kinds think TEFL peaked with China
More people are willing to teach, fewer people need it, online teaching is a big hit, and tech such as AI is staring us in the face
If someone is willing and able to teach K12, I think the money and options are best when one is qualified for international school positions
Otherwise, get a PhD, I’d say.
CELTA is good for someone who wants to keep with ESL type teaching, maybe open a school or go into materials design. But in terms of long term career benefit it probably isnt great