"Back then" that seemed to be more than adequate for the stuff they felt was needed.
If you are one, or are able to find folks, who can live within their needs, for them closets are an extravagant waste.
I am comfortable with my extravagance.
Today, taxers are more interested in size, conditioned space, effective space and wet sites, not closets.
I once sold a house with NO closets in the bedrooms. There were three or four bedrooms but only wardrobes for clothes. Worked just fine.