Although it is a famous seppuku as "HARAKIRI", there are people who recognize this as an expression of the virtue of the samurai.
But I do not think so.
I think that it is the responsibility to escape to fail to do something.
If that samurai truly takes responsibility, he should survive anything to face the problem and settle.
I think that there is a reason why it did not become mainstream.
For example, if you are a castle owner and other soldiers are saved if you die.
Perhaps old Japanese people treated strictly those who failed in anything.
Failure for them might have been more embarrassing than dying.
Values are different between old people and modern people.
It is interesting to consider "Harakiri" not as a strange Japanese custom, including its background.
SAYONARA