Yes, those exist in industrialized countries as a result of public policy decisions. We do not have 3 or 0% mortgages because that’s what the market naturally bears or produces: we have it because mortgage debt is backstopped by the state.
It’s possible to “understand” mortgages by understanding that conditions for stable home markets don’t arise by themselves—we collectively make them possible because the outcome is desired—then wonder WTF because what social function is creating conditions for private equity getting us.
In residential real estate, I think stems in large part from a desire to help people who don’t come from money to own personal real estate (which is one of the best ways to go from $0 or negative net worth to positive six figure net worth).
Not only is that politically attractive, I think it’s more good than bad as public policy.
Turning back to PE/LBOs:
Having limited liability entities (companies) also serves good public purposes. Having companies being able to borrow money also does. Having companies being able to own other companies also does. I think that’s the only three ingredients you need for the PE model to operate and I don’t think that the public is helped by barring any of those three things.