Where age limits actually bite
A handful of destinations — some Gulf state government contracts, certain South Korean public-school placements (EPIK has historically been more flexible than people assume, but check the current cycle), and a few Asian government programmes — publish or informally apply upper age limits, often 55 or 60, sometimes lower for first-time applicants. These numbers shift year to year and by province, so treat any number you read online, including this one, as a starting point to verify rather than a fact.
Private language academies, by contrast, mostly care whether you can hold a classroom and show up reliably. Owners running a language centre in Hanoi or a bilingual academy in Valencia are far less interested in your birth year than in your TEFL certificate, your references and whether you interview well on a video call.
