[roenxi]

Yeah. As phrased it is bad advice - nobody actually needs to be "vulnerable". Everyone should be in a headspace where they might actually change their mind rather than persuade the counterparty, which feels like vulnerability to people who define themselves by their own beliefs. The trick is not to do that; a person isn't their beliefs. People have beliefs, but those can change. They're still a person both before and after the change (which sounds a bit ridiculous to have to say, but by observation some people don't seem to believe it to be true).

[dsego]

Some people are just too stubborn, especially if they come from a place of authority and seniority. I'm doing house repair work right now with an older relative. He learned how to do repairs and renovations by himself, things like working laminate floors, mortar, laying tiles etc. The things is, he has his own reasoning and rhythym of doing things and doesn't like to be challenged, but I feel his ways don't always make sense, esp when I feel he is rushing and improvising (a programmer can tell). I haven't done much handy work myself in the past, but I'm a millennial, so I google things, watch youtube videos, and I read instructions. I also know that it isn't rocket science, my parents built our own home brick by brick. And now, every step of the way I have to be pushy to get my way, and make it sound like I'm not imposing or too nitpicky or challenging his "expertise", it's very taxing, I made a big scene once already and the whole relationship is now strained.

[roenxi]

That's kind of it though, isn't it? If you're going to convince him there has to be a reasonable chance that the opposite will happen and that he'll convince you that he's too old to learn new tricks or whatever and he's going to have to do it his way because he isn't up to the challenge of doing a better job.

If your range of outcomes is [He'll do things my way, There'll be a scene and a strained relationship] then sometimes there'll be a scene and a strained relationship. If the range of outcomes is [we do things my way and he hates it, we do things his way and I hate it] then that's at least softer on the relationship. If you're lucky maybe you don't even care and you can just live with some parts of the work being bad.

One of those awkward things is that being good at negotiating means that other people are more likely to get what they want. It is actually a bit counter-intuitive.