Some people are just too busy to work out or start cooking healthy meals from home, some people have always been too busy and never even learned how to cook healthy meals, it's been fast food since highschool. Get home and you're too tired from your minimum wage customer service job to even find to time to do chores. Maybe you're clopening too so you have to sleep as soon as you get home. If you don't drive then that's another possible 2 hours in city busses and trains. Get home and you just have enough energy to change a garbage can and go to sleep so you're limp dick just isn't your biggest concern. Probably have your days off spread apart, one on monday one on a Thursday, always compiled of catching up chores you didn't do and rest you didn't get, no time for exercise or cooking from scratch