I can answer this for my friend. She is a mom to 3, but does not call herself a cook.
She has never made spagetti. She buys the jared sauce with meat, heats it while she cooks the noodles. The garlic bread is the frozen stuff. When they come to our house and get spagetti, she knows that there is 2-3 lbs of meat, onion, garlic, seasons in the sauce that has simmered all day. The garlic bread is italian loaves with melted butter infused with garlic.
Pot Roast - the pre-cooked meal you find in the meat section or the packaged meal that you put in a pot and cook. She wouldn't know what type of meat to buy to make the roast. She wouldn't think to cut up potatoes, onions, carrots, and celery. She wouldn't know what seasons to put in with the meat.
Meatballs - come straight out of the bag from the frozen section.
The examples go on and on. She came from a single parent home. Her mom worked 3 jobs and most nights my friend was opening cans of soap to eat. Or ceral. Tv dinners and pot pies were for when her mom was home for dinner.
She readily admits, she should learn how to "cook", but she doesn't...why she doesn't

. Her girls love to come to our house and fix food with me and my kids. She has asked how I came up with some of the dishes I make and I always tell her, either family or friends showed me or I jsut threw it together and tweaked it til it tasted right.