Let me make the question more specific. In the open course <Justice: what's the right thing to do?> a lot of extreme examples have been discussed. For example:
- the trolley car problem: to kill one or kill five.
- the crew of four: sacrifice one person for the rest.
What could be the use to do those discussions in the sense of morality? In consideration of that
- the extreme examples happen rarely in daily life. So most people have not experienced those examples directly and maybe never have that chance.
- how can an inexperienced person have her/his real opinion. She/He might change the opinion vertically once she/he is involved in the real case. Especially in some rarely happened events.