Retired at 55 from software development. I think it helps when your career (slash passion blah blah) is something that you don't need other people to do. I stil

Retired at 55 from software development. I think it helps when your career (slash passion blah blah) is something that you don't need other people to do. I still write programs and help nonprofits with Salesforce work. Software development, writing, music, all can be done solo, and more importantly for your own fulfillment. Doctors etc. could have a problem.