During WW-II and for a few years after, both Dad and Mom worked, at separate jobs, clear across the cities of Lafayette and West Lafayette (Mom was helping to support her elderly mother during that time frame) and so they had three cars (a '42 Desoto -- the one with hidden headlights), a '40 Willys 2dr sedan, and Mom's '32 Chevrolet Confederate coupe that she'd bought new in 1932. I rode in all three cars, in a manner of speaking: Got taken to Home Hospital here in Lafayette to get born (July 12, 1944) in the Willys, my first ride as an air-breathing kid was coming home to Battle Ground IN in the Desoto, and then as a Kindergartener, rode to school in the '32 Chevy--the envy of all the other kids on nice days, when Mom would open up the rumble seat, let me ride back there!!
From 1950 to 1954, our's was a one-car family, then Dad bought a slightly used 1953 Hudson Hornet 4dr (with the 7X Twin H-Power engine and Hydramatic, along with a new '54 Plymouth (Mom got the Plymouth--by then she was a stay-at-home mother with three school age kids) while Dad drove the Hudson for work. From that point forward, my parents always had two cars.
Of course, West Lafayette IN, due to the presence of Purdue University and being the upscale side of our "twin cities" was a hot bed of multiple car families pretty early on--but in all of that, there were still couples (mostly older) who didn't have even one car--neither husband nor wife had ever learned to drive!