I really pissed my ex-wife off with this subject one time.
I asked her if she would never grow old and die, would she ever get in a car again? Eventually, after a trillion years, it would be very likely that she would be killed in an accident. When we only live about 80 years, there is not that much to lose by risking our lives in this manner, but if it is possible to live forever, we risk eternity everytime we get in a car. Needless to say, she didn't want to try and rationalize this.
pseudo