Question

why are soft iron keepers suitable for storing bar magnets

Answer 1

Magnets actually can lose their magnetism when we do not take proper care of them. We should not hammer, drop, heat or knock down the magnets.

Also, a magnet tends to lose its magnetism if it is not stored properly. Bar magnets are always stored in pairs with their unlike poles on the same side. So, soft iron keepers are suitable for storing bar magnets, which are kept across their ends.