If houses lose 30% of their value, a substantial amount of people would be underwater and would likely be better off walking away. Could be very bad.
Most people will not go underwater (not that many people, proportionally speaking, bought in the last 2 years), but either way, there's zero chance anyone's walking away if it's their primary residence. What are they going to do, live in a van down by the river?
Rent?
All the folks that are pretty much capped out on their debt with their new mortgages should be a great position going forward because they're locked in with their 2-3% mortgages and interest rates (and/or market returns) should surpass that.
When the choice is pay for gas to get to work or feed the kids nobody cares they are benefiting on their 30 year mortgage because of inflation.
What if you just want to... you know... live in a house? In that case you just live in it, service the mortgage, and wait.
You could go bankrupt, but then you'd have a hard time finding a rental place for the same amount that'll accept people with very low credits scores.
That would only be true for people who did cash out refis, not for someone who just wanted a lower interest rate. All they did was re-amortize their current existing loan (on a house that they already had equity in) and get a lower rate.
I don't have the raw numbers, they're almost all paywalled off, but you can see the recent volume of refi has been a multiple of each quarter from 2013 through 2019.
https://www.attomdata.com/news/market-trends/mortgage-origin...
The total outstanding residential mortgages today are roughly $12T. Since 2020 onward, over $5T in volume has been refinanced. That's a large portion of the population with a mortgage that is very early in its lifespan.
https://www.statista.com/statistics/205946/us-refinance-mort...
How do you figure? Refinancing does not, in most cases, mean taking additional equity out, thus LTV should not change for the majority of refis.
https://www.housingwire.com/articles/cash-out-refis-reach-1-...
Cash out refis accounted for ~25% of all refinances in 2021 (roughly similar numbers in 2020). Remember at the start of the pandemic many people tapped their equity because of uncertainty and extremely low rates.