it's still not a high risk, owning a house (that is, having paid for it, not owing any money to the bank) still leaves you in a better position than a renter, as you can basically let it burn and will still be in an easier position to get a loan for a new house in another place if you really need to
Think of people who owned houses in declining industrial cities. The local economy went bad, their house value went down and they faced a barrier to moving since they couldn't sell, move, and get a comparable house in a city with better prospects.