Is teaching English a dying means to move to Japan?

While I definitely have more skills to offer I know little to no Japanese let alone business, so teaching English (which I do have experience and certs in) would be my only means of moving Japan.

Well, grad school but I'm not really sure how to make grad school in Japan make sense for my longterm career life goals. I mean grad school makes sense, and I want to live in Japan but there's no outstanding reasoning or benefit to move to Japan for grad school other than wanting to go to school and live in Japan lol.

Anyways, with that being said I was wondering if teaching is a dying industry in Japan? It just feels like with societal shifts in values and technological advancements companies would be less inclined to invest in foreigners to come teach English. OR maybe thats not the case at all which is why I'm asking is it a career thats still thriving like it did 10 years ago? I'm 29 and wondering if I'm too old and had done better going fresh out of college or even language school IN college?

by Comprehensive_Alps28