It makes me think of Tyler Dasher's grandmom giving his crib to the local charity that supports mothers in distress....
We all cope differently I guess...
I could certainly understand the sentiment of wanting a deceased child's things to go to a child who still has life and hope. It is something akin to organ transplants in the emotional aspect.
But to send them to storage because you don't want to see them as a reminder? I'm thinking the "reminders" are more reminders of the parent's own failings. The younger children may also be asking questions "someone" doesn't want to explain. Or maybe someone is annoyed at seeing others' reaction of grief and shock and just doesn't want the "guilt trip" at not having the same capacity to feel? I don't know; these are just questions and possibilities.