People in their 20s on average change jobs every 18 months. People in their 30s — at least the ones that continue to do well in their careers — change jobs frequently as well, although at a slower pace than the 20 somethings. So if you think job-hopping is bad, change your thinking. Job hoppers are not quitters. In fact, they make better co-workers and better employees and I bet are generally more satisfied with their work life.