> I think car sales is an accelerator course for interacting with, reading, and closing people.

There’s a lot of truth to this, but you could easily switch out "car sales" with any other kind of client and customer interaction. When I worked closely with users many moons ago, I quickly realized that most of them weren’t getting their needs met and were super excited to have me work one on one with them, and a very small percentage were actively hostile to any interaction at all. This kind of thing has held true for every job I’ve ever had. 1% of the customers cause 99% of the problems.