To put it bluntly, I can think of a number of other cases where
(1) people say things to children because it is more pleasant or convenient, not because it is true, and
(2) these misleading statements have negative effects later.
In this case, it seems potentially worthwhile to keep in view that death is actually not a good thing, and that it would better if there weren't death, and that we want to keep an eye out for opportunities to prevent death. "You do not make peace with darkness!"
(1) people say things to children because it is more pleasant or convenient, not because it is true, and
(2) these misleading statements have negative effects later.
In this case, it seems potentially worthwhile to keep in view that death is actually not a good thing, and that it would better if there weren't death, and that we want to keep an eye out for opportunities to prevent death. "You do not make peace with darkness!"