In 19th Century some ggps of both sexes worked on a farm; some were spinners ( women) weavers ( men). The vast majority of people in UK before WW1 and even WW2, were working class and poor - very poor by our standards today. In cities they rented rooms ( no Council houses eg.) and midnight flits were not uncommon when rent couldn't be paid. No state help then in illness, old age, redundancy etc.
On the 1851 census for Manchester my elder great uncles /aunts are under 10 and working as scavengers in the Mill. They are doing that because the family couldn't manage without their wages, pitiful though they were. Working class families which could afford to have a stay at home mother would have been the skilled upper working class so fitters, draughtsmen eg. and maybe with few children.
My grandmother was born 1868 and always worked despite having 12 children. She worked in a funeral Parlour ( her Dad was a cabinet maker so made the coffins I guess), took in washing, went round factories buying leather for my grandfather who was a slipper maker, sewed at home etc. Without her work the family would have starved when my dgf was sacked. Manchester had many working mothers and children because the Cotton industry needed their skilled hands and the ability of youngsters to climb under the machinery.. Children/ babies were looked after by relations, older daughters, neighbours etc. My m in l looked after a series of cousins as well as her younger siblings as both her parents had shops.
My mother worked all her life from 20 when she qualified as a teacher to 60 FT and 61 PT. She was fortunate that WW2 meant that the rule that married women couldn't teach was rescinded - she was a single parent. (Many WW2 babies were in nurseries if necessary to free up women for war work.) After the war we were desperately short of teachers so there was a big campaign to recruit 'married women returners' and also men were offered 6 month emergency training to become teachers. ( There were still 56 in my primary class and poorer areas could hardly get teachers at all so 90 was not unknown in Salford eg.) Housing was often grim and in very short supply because of the bombing etc. Cellars were often occupied. So much for the advantages of the Boomer generation.,
My sister and I (born 1943 and 1946) have always worked FT - the former to 60 then PT for 5 years. Children looked after by grandparents. I worked FT to 67. Had PT mother's help in morning and then worked in evening. (Maternity leave was already there for women teachers in 1950s. 11 weeks before the birth and 7 after.)
The threat of redundancy being ever present for husbands as Industry contracted meant that we, as many women, couldn't risk giving up work.