Latin America, more uneducated deeply religious people belonging to a faith that doesn't glorify death.
Mexico glorifies their dead.
But, I wouldn't take that to mean, Mexicans are think if only I were dead then people would like me. They respect their dead.
When I think of glorifying death, I mean when the culture glorifies suicide or martyrdom. Early Christian doctrine did glorify martyrdom for the religion. But the church now doesn't see that as such a noble cause. However, even here in our culture we do glorify self sacrifice of individuals to save others. For example the solider that jumps on a ied to protest his squad from the blast and ends up dead. Then is awarded the Metal of Honor. In Japan and Ancient Rome, suicide was expected and never frowned upon. Fundamentalist Muslims think if they die for their religion a glorious afterlife awaits them.
Hindi and Buddhist believe in reincarnation but I am not sure that is more or less reassuring than notions of a heaven. The reason I pick Latin America is while they believe in heaven as a means of being comforted in the face of death. They are also fearful of the judgment and being sent to hell. This tends to be a mainstream Christian thought.
I interpreted the question as a fear of death. Only a suicidal person holds their own life cheaply. The argument that life is cheap in other countries only means people are willing to kill others. This doesn't address the killers' personal fears of death.
On the flip side I would think the most fearless group of people are the Jews of Israel. If I am not mistaken they have no concept of hell. They have a waiting period after death to pay for sins before being allowed into heaven. No eternal damnation. Retribution for sins will be taken out during the person's lifetime.