It's more the point that sometimes you don't want to have to justify yourself to all and sundry, especially when the person you're talking to has no real insigh

It's more the point that sometimes you don't want to have to justify yourself to all and sundry, especially when the person you're talking to has no real insight and wants to appear smart. I've been to loads of events where you just want to have a nice chat and before you know it you're getting a lecture on all the ways in which you're going to fail. One time, I didn't even want to talk about my stuff but was basically forced to have to justify myself. Do this a few times and it gets exhausting. It's got nothing to do with whether you can answer the questions, and everything to do with the fact that sometimes you just don't want to answer the questions.