It is endemic in the Anglophone world. I also speak a little German, French, Norwegian and at a push Spanish and Swedish, and I applied to anywhere that was hiring English speakers there, too... with cover letter in the local language, naturally.
I think it's just an oversupply of people in it support and it really contrast with the shortage of software engineers. Now that you're teaching English as a foreign language you're in a skillset area with a shortage and that's why you're more in demand. Age might matter a little bit but I think you've just got the right skill set now in the area that's short of experts.
It is endemic in the Anglophone world. I also speak a little German, French, Norwegian and at a push Spanish and Swedish, and I applied to anywhere that was hiring English speakers there, too... with cover letter in the local language, naturally.
Zero interest.
So I think it's a Western problem.
Q.v.
https://techcrunch.com/2010/08/28/silicon-valley%E2%80%99s-d...
https://newrepublic.com/article/117088/silicons-valleys-brut...
I encounter virtually none here in the former Communist Bloc, where people are more interested in me because of my experience.