It's an option that people can use if the horrifying thought of not being able to deduct interest payments scares them so much. Many people have done just that. If the reason for buying a house is to get the mortgage interest deduction, then priorities are off. If someone wants a house, they'll buy it, deduction or not. People buy a lot of things that have interest connected to it that they are not able to deduct.
Same thing, different scale.
They don't have Social Security, but they do have state-funded welfare benefits, as well as state-funded veterans benefits, as well as state-funded Tennessee National Guard concerns to figure into their budget. Same thing, different scale.
I agree completely.