Wouldn't it be the other way? If home ownership (and renting) became so expensive no one could possibly do it without multiple incomes people would be forced to find roommates.
> macroeconomic conditions such as soaring housing prices and intense employment pressure also come into play, forcing many people to give up trying to tie the knot
https://www.scmp.com/economy/china-economy/article/3204140/y...
https://www.wsj.com/articles/inflation-driven-record-rents-m...