1. I'm talking about professionalized in the sense of being an occupation that generally requires college credentials and specialized knowledge to participate i

1. I'm talking about professionalized in the sense of being an occupation that generally requires college credentials and specialized knowledge to participate in. Not always the case for software engineers, but often. Professionalized in the sense of being an occupation of the PMC. 2. There are probably many reasons for high turnover (especially among startups), but you kind of allude to a salient one (for this conversation) yourself. Leaving a job is a chance to get hired in a place where you'll learn something new, so if employers need a reason to train their people, that seems like a fairly good one for how it might benefit retention and experience of their employees. Ultimately I don't really care how it benefits employers, but software engineers tend to have a lot of leverage over who they hire so I see it as something we should do for our own sake