Teaching Jobs for Older People

Is it true that teaching positions in Taiwan almost always goes to people in the 20’s and 30’s?

I am an American in my mid-50’s and thinking about retiring early and moving to Taiwan.
I would want to work for a few years until my 401k kicks in. I have BBA in Information Systems and have worked 30 years programming computers.

Do the teaching schools in Taiwan hire older teachers?
Is there a mandatory retirement age in Taiwan?

I believe there are some schools and places doing programming classes for kids. Think about that too. English and programming skills could be a good combination as long as you are personable.

Adult student English schools like GVO and Gjun and the like hire older teachers often. In fact, they generally make up a larger percentage of the teacher staff. However their pay is less than teaching kindy or a buxiban.