I don't they it is fair for house elves to be slaves, and to be extremely obedient all of the time. It is fair that they get fair pay and have breaks and days off.

And, if they are happy doing what they are doing; like working for a master, or at Hogwarys. Then they should do it, by all means. I think they should be able to be free from their master, not just by cloths. To actually give them free will would be a pretty good thing. like Dobby, when he was at the Malfoy's, it reminds me of enslavement of African Ameicans, just because they were black, they were slaves. For the Elves, just because they are elves, they are slaves.

So jobs, yeah; but slavery, no.