Why do you feel that way Omi?
I think just simply because of their size
My rabbits have quite a large shed plus additional areas leading off of it, but if I think about two or more rabbits who would be more than twice as large as each of them, I can't see it would be large enough.
They also seem to me to fit into the home environment, possibly in a similar way that a dog would. They look as though they should be indulged and cosseted
I think Hector is absolutely right :thumb: