Youre comparing a testing goal to an operational goal? How the hell is that even relevant?
We'd all still be using steam engines with your logic, because the moment a gasoline engine blew up in testing we shoulda just given up! And jet engines for aircraft? What a waste of time!
C'mon. You gotta be smarter than that.
Yeah no. Look at what those numbers would actually be. Median is 70-80 depending on country and sex. I dont want a 95 year old president when they enter office... And 55 as a minimum is far beyond "life under their belt"