Eh, I'm a boomer, and I cook, mostly from scratch. My mom grew up in the 40's and HATES cooking.
I learned pretty much on my own, in the era of microwaves (which really didn't come out until the 80's IIRC).
I too am a boomer and I cook. My mother grew up during the depression and was a awful cook. She lived on fried egg sandwiches, pancakes (with basted eggs on top), potatoes, pudding, and cake. Veggies were from a can and the only thing she made that we three children still make and eat is potato soup.
Even when it was necessary to cook to feed the family, my mother found fast, easy, bad-tasting, and unhealthy food to serve us. One good thing was that she rarely, if ever, bought candy, ice cream, chips, and other processed junk food. I grew up before "fast food" restaurants. I saw my first McDonalds in my teens.
Note that we were all overweight