When two spouses are working instead of one, more money is injected into the markets. Of course, the individual behavior of a specific family does nothing to home prices, but if 10% more households suddenly have a working spouse, there is way more money chasing the houses that exist in the market. It is the same reason we saw inflation during COVID. There were suddenly lots more dollars chasing the same products and services, so those products and services necessarily had to get more expensive.