My mum was a SAHM so didn't have the pressures of work, but raising a family of 5 on one wage in the 60s/70s wouldn't have been easy.
Obviously basics were harder like budgeting, getting the weekly shop (from butchers, fishmonger, baker, green grocer, chemist, grocery) home on the bus, using twin tub for laundry, making and clearing up a meal for 7 every night cleaning/lighting a fire most days for hot water and did our weekly baths etc all with no help from the poor man who was tired after a hard days work.
There were a lot of things parents just didn't do, we didn't have after school activities or many days out we just went out and played, we wore hand downs from brothers/sisters/other relations, we only went to dentists at school, mum cut all our hair, swimming lessons were the 6 weeks provided by school only, school was around the corner and we walked/came home at lunchtime. You worked hard and got the grades you got from the local school, no home tutoring. Girls did a lot of chores to help from quite a young age.
I think even with ft work we have it easier, or at least better.