Easy: as an engineer, my father in his late 30's could support my mother being a SAHM, three kids, buy a 120m² (IIRC?) small house with a garden, and all the modern commodities (well, safe for electronics that didn't exist at the time).
Nowadays, I'm also an engineer in my mid 30's, and I can just buy a 40m² flat. Never talk about kids.
Easy: as an engineer, my father in his late 30's could support my mother being a SAHM, three kids, buy a 120m² (IIRC?) small house with a garden, and all the modern commodities (well, safe for electronics that didn't exist at the time).
Nowadays, I'm also an engineer in my mid 30's, and I can just buy a 40m² flat. Never talk about kids.