I'll give you a historical prospective. Back in the 80's and early 90's, there were several good commuter airlines that a guy could work for his entire career. Air Wisconsin, Horizon, Rocky Mountain Airways, and Comair were all places that had good pay and benefits. Here's the problem. You don't own your flying and you're at the mercy of your main line partner. How many carriers has United put out of business?
So here's the problem. A career at a regional is a high risk proposition. I can't see someone voluntarily spending a 35 year career at one. It can be done. The question is should you do it.