I disagree. Assume everyone is incompetent especially for things that are important to you. The struggle is determining what is important and what can be left in the hands of incompetents.
I assumed the person of questionable competence's actions would not be affecting things important to me.
We live in a complex society. Competence or the lack of must be considered in all interactions with others. Think of your car and how many people were involved in its manufacture.
I think you're going beyond the scope of OP's question, but I do agree with you. Reminds me of when I saw my neighbor bogging down a battery chainsaw. I brought my good ol gas saw over and offered it to him. He's appreciative, sets to cutting... He's holding the chain brake back to the handle. As the 4chan boys would say, "holyshit.jpeg"
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