20-Year Prospect
You have the right blend of durable strength and decorative talent that a top-notch glazier needs. Perfect. Over the next twenty years(and beyond) you'll be using those talents to beautify, protect, and enhance all kinds of projects.
Furthermore, you can put to rest the fear of outsourcing or obsolescence. Outsourcing glazier work would be far too inefficient and risky to truly work, as glass shipped could be easily damaged or cut to the wrong measurements. Plus, with the rise of people moving back to more urban areas, more and more developers choose to build glass-and-steel buildings in order to maximize efficiency while minimizing cost.
Basically, glass is growing in popularity because of its lasting beauty and versatility. And, no matter what color glass you choose, it's all green (as in natural and completely recyclable).