I definitely agree. But I don't see why an Osasian should.
For him, any earthly responsibility, or feelings of devastation can't even begin to compare to the bliss of the life of the world to come.
And, just to push the envelope a bit further... shouldn't he kill his family, too?
Seriously, don't kill yourself.
Or your family.
As human beings, I am not convinced people are able to get past the fear of the unknown. Insofar as his/her family, they would have to make the assumption that their family would be spending eternity with them.
Personally, I think that people fear death more than they are willing to admit because once it's done, everything is out of your control.