I know a few people who are mortgage rich, and cash poor (or house rich? I don't know the saying). They are essentially stuck. They can't sell the house and move into a new property because relative to everything else, all real estate has essentially moved at a similar rate. They can't sell their bathroom if they needed to. They have to keep investing in the house to keep it in good condition, so it costs money to keep the investment.
If they want to sell their house, they have to find somebody who wants THEIR house, not the one next door, not one in a different town, but their exact house.
This is in contrast to other investments, gold, stocks, crypto, where you can sell to anyone, you can make money (dividends) if the business is doing well, you can sell any portion of your investment and buy another investment with it. There is no cost to you to hold on to the investment, etc etc.
The only argument I see for owning a house is the "I'm paying myself my mortgage, so it is like investing in myself", but if your money can do better in another investment, I feel you're better off renting and making money in other ways.
The two big questions I think we have are 1) if we suffer population collapse - which is a possibility - what will happen to house prices 2) will millenials, or whoever comes next want to own houses? We thought it was crazy that somebody wouldn't want to own a car, I think it's crazy that any of them would want to have a University degree. We're seeing digital nomads as a fringe atm, but perhaps that becomes more mainstream. What happens to housing?