I cant see the bubble not popping soon.
I think this continues on because banks don't hold their mortgages for the most part. They're originated and then packaged and sold as securitized debt. If nothing fraudulent is listed in the info packages, then there's no recourse, but the same hesitance doesn't happen with origination because the loan agents know they won't be considering what will happen with the loan if rates go up or defaults start and the 800k houses drop to 550k.
In the US, you can own a home and afford it but most people choose, let's say, if they have $100K of income that they should match that to a $400k house with two newer cars and two vacations a year. I don't really follow that and live in half the house with no mortgage (none since my thirties) and intentionally buy cars cash so I can feel the full pain of what it costs to buy them - it stings a lot more to see the assets go if they go at once.
But if I am thinking with the same kind of notion that I have and I originate loans, if I only need to follow rules and hold the loan for two months before wrapping it in a security offering and offloading it while keeping some margin from it, the thought process is miles different. If you operate under the principles of an old community owned farm bank, where the lenders and bank owners and debt holders, etc, are all in the same community, lots more caution is employed.
I was relatively positive about the situation until the last two years or so as nobody wanted to borrow money at the corporate level (so rates stay low) and I"ve always been astonished at peoples' tolerance to buy a new expensive house mid life and not consider how it limits their options in the future, but there wasn't such an equity threat as there is now in loans. As 5, 10 or 20% equity loans are issued and house prices have risen in some places as much as 40% in the last two years, it doesn't take much to figure out that a small change in rates and the job situation can lead to houses being under water on the loans. Once they are, some default leads to further lowering of the prices, adjustments in loan standards ( which exacerbates it even further) and we're looking at a situation like 2008 in the US.....only 13 years later, but with a slightly different cause.
At any rate, I have to think if the banks held the debt indefinitely, even if in a sister company that serviced loans (as I"m sure they could make the case that they're "too profitable to bother with servicing loans" administratively), the money would be lent so easily with such a low equity stanard.