Mum being home and being the only carer for three years+ is a totally modern phenomenon. People call it ‘traditional’ but it was never like that before. Nobody was expected to spend all day every day interacting with their kids.
The working class women had to work whether that be taking in washing, cleaning etc. The children were often there but mum was not focusing on them singing ‘the wheels on the bus’. A lot of the time the kids would be left with another bunch of kids of varying ages, an older child, a grandparent, unrelated woman or just left to their own devices for huge swathes of time.
The middle class women were also not singing ‘wheels on be bus and crafting 24/7, they were more focused on their husbands, social engagements. They would have help to look after the kids.
The upper class women and royalty barely saw their kids, a nanny would look after them until they were packed off to boarding school.
This ‘traditional’ mum at home actively engaging with the kids all day every day is pretty new.