I believe you are right. My mother was born in ‘29 and she told of their family which lived with his parents while he went on the road to work. Grandma’s and grandpas lived with them too if need be and EVERYONE pitched in. She made it sound very idyllic.
Personally, I believe that people made do and worked together to survive. Many hands make light work. I am sure there were issues with so many people under one roof but there were advantages as well. Not to be over analytical but it is in modern times that children leave the home before marriage and “old age homes” exist. Families use to stick together more. I think as a society we’ve lost that closeness. Grandchildren now know “Granny” or “Pop-Pop” when they see them for an hour on Saturday. The unemployed now rely on welfare rather than moving back home till they find another job. I don’t consider this a good evolution.