How's the job outlook for teaching?

From a purely subjective perspective (since I don't have a lot of statistics to back it up) I'd say the outlook is Great! Here's why:
1. There will be an on-going need for teachers. I know some will say that automated instruction and digital media will change that, but I don't see it resulting in the elimination all teaching jobs.
2. Teaching is a transferable career; you can take it most anywhere and find job opportunities.
3. It's a socially valuable job - you will be affecting people's lives and guiding them to better outcomes. So if you like working with people, what an opportunity to excel at that!
4. Teachers frequently have strong labor unions, which generally guarantee them more career stability and long-term benefits.

The Bureau of Labor Statistics estimates the annual employment growth in the teaching profession to be around 6% per year from 2014-2024 (https://www.bls.gov/careeroutlook/2016/article/education-jobs-teaching-for-a-living.htm). Frank's comments above are also worth considering.

If you can, you might want to talk with some teachers from all levels (elementary, middle, high), and ask them what they find rewarding about being a teacher. You might find their responses insightful.

Good luck!