It is probably a beginner question here, but: it is not reasoning, it is a feeling i.e. it is the calculation done in the less-rational parts of the brain that evolved for simpler circumstances. Even if you rationally know it is not the case, you still feel worried, because one part of your brain knows it the other not and the other one is stressed. It seems then that not flying can still be a good decision just with a different justification, not "because I will crash" but "because I know I won't crash but part of me is still stressed and I would better avoid having that stress".

And this seems to be so for every irrational decision and choice... it is buying a better outcome at the cost of some less-rational part of your brain still stressing you out with worry.