Dan, I moved into sales in my 50's. I am 56 now. My job does involve travel, but if you are in an urban area, you may not have to leave home the way I do. I have health insurance, a retirment fund matched by the company, and great coworkers. I am building up my client list, as this is only my second year with the company.
Selling is a lot like teaching and performing. It is all about listening and communicating, helping someone else get what they need from what you have to offer them.

By the way, lunch with my co workers yesterday became a discussion of how the environment of schools has degraded so that kids act like The Lord of the Flies. One among us is a former teacher who will never go back with the conditions in schools today.

good luck