I can attest to the above. My mother, to the best of my memory, never added any spices or herbs. My father was a meat and potatoes kind of person, so mom didn't have a broad selection of items for the dinner table.
Fried chicken had a plain flour batter. Steak was broiled without spices. Spaghetti was cooked with a plain spaghetti sauce from a can or jar. You might be surprised by the number of items that I put ketchup on just to add some flavor. Ie mashed potatoes, baked beans, spaghetti, etc.
I once brought home a Jamaican girlfriend to visit, and she was appalled at how bland my mother's food was. Aside from
salt and pepper that was on the dinner table, Mom didn't spice up her food at all. Since I grew up eating this way, I didn't know any better.
When I cook now as an adult, I like to experiment with adding different spices, rubs, sautees, to add FLAVOR to my food. I live with my brother, and he won't eat my food. "Mom never cooked it that way."