A lot of this is just social change from the womens liberation movement. Women went to work and the market adapted. Now, in the main, you need 2 incomes to run

A lot of this is just social change from the womens liberation movement. Women went to work and the market adapted. Now, in the main, you need 2 incomes to run a home. It's worse in a lot of countries where tax policy disadvantages the pre-1960 norm like the UK.