you don’t understand? Maybe you have been flying a very long time, but from my viewpoint I can understand. A new pilot wants to get some time under their belt, to convince themselves they really can handle everything ok much like when you first get your drivers license.
But on top of ones own confidence, there also is the non pilot view many take that small planes are dangerous. Also your wife or husband has seen you be forgetful, or make dumb mistakes and now you are flying an airplane? So on the rare chance that something bad did happen, you imagine being blamed for taking such a risk.
It doesn’t matter how many times you point out that the highway is more dangerous than a small plane, people just often don’t believe it.
To the OP, I read a book by an experienced pilot who if I recall was flying as passenger for the first time in a fighter where the pilot asked him before taking off, and throughout the trip “on a scale of one to ten, how are you feeling right now?”. It was new to him, but it makes a lot of sense. Turned out he was getting a little green, and when the number started going down, the pilot took him back. The author pointed out how this was a great technique at least until your passengers get experience flying because he points out “most people, if you just ask them “how are you feeling” tend to say “ok”, but if they put a number on it, they tend to be more accurate and the pilot can avoid airsickness or other discomfort and land in time so it isn’t a bad experience.