Making bread by yourself is tedious, and you need a big enough kitchen to do it comfortably.

I've found meals in US restaurants very big, and the food and drinks either very fat or very sweat, much more than in France. I'd be overweight in the US with only 2 meals per day and I don't even talk about desserts.

You may not realise it but cooking by yourself require many privileges: you need education, you need a large kitchen with all the tools and ovens, and you need time. Also, you can easily cook unhealthy food, which means you also need good eating habits, which you learn while a child or with a lot of pain and efforts.