> "This isn't helped by the software industry's reputation (well deserved, in my opinion) of being populated by arrogant people with little or no tact or empathy."

I don't get this attitude at all, but perhaps that is because I transitioned into software dev from the trades. In the trades you want your apprentices to ask questions, I don't see why Senior Devs would be assholes. In my experience, when I asked my Senior Devs questions, and this was after initial research efforts on my part, they were all receptive and helpful. It is much better to ask the question as a Junior than commit to prod and create even more work for the Seniors.