That is true, and one could argue that one should relax certification requirements for airplanes and airmen and operating rules, and let more people fly more cheaply, and more people die.

(Not being flippant here: we make risk trade-offs all the time, could limit cars to 30 km/h or so and reduce traffic deaths, but in that case, we don't.)

However, in aviation we do have very high standards now, with concomitant safety, and while it might be fruitful to have that discussion, it's arguably not up to cabin crew to make that decision ad hoc for everyone on the flight.