I don't agree. I find that it's no different then cooking for four. I really like to batch cook and use leftovers as it's quite creative. I also do make just one portion of food because I either only have a few ingredients or just fancy a particular dish. The other day, I made ww spaghetti with roast aubergine in passata. It only took 30 mins to make and I didn't have any leftovers !!My mother was a good cook and I learned to cook at an early age. However, I really got out of the habit of cooking meals when Jeremy took over that job in 2008 when we went vegan. Now I don't really like cooking anymore! I have hundreds of recipes so I am trying to learn to cook again! I have been making soups and have 3 containers of different soups in the freezer because the recipes make so much! It is really hard cooking for one person!
However, many people don't like to cook. As you do need to eat, it certainly must be a chore to have to cook.
My cousin in the US, doesn't like to eat huge meals and loathes cooking. I asked her what she would do if she had to make a meal for one. She replied that she would have a sandwich (which she already does) for lunch and either a Cup of Soup or a scrambled egg for dinner.