I feel that house-elves should have the choice to be free. We can't free them all at once because some of them don't have to knowledge of how the real world works. And also some of them are actually treated with respect in their homes. If the elf wants to stay at the home for a short period, maybe there should be a contract/bond between the master & the elf of how long they should stay in the household. And the elf would get the choice how long they want to stay. To promote this to the public, if they treat their elf with kindness and respect, the elf might like the home and could stay longer.

Olivia//Gryffindor