It's all about rent. If you've lived somewhere a while and have rent control, or you have roommates, or an unorthodox living situation (e.g. no kitchen), or can find a below-market unit, or some combination of those, you can survive on FAR less than someone who is moving to the city today and signing a new lease on a market-rate 1-bedroom apartment.
Sometimes it's like a half fridge and a two burner electric stove. Maybe you have an air fryer. Maybe you just microwave a lot of stuff. Or do like I do, eat a lot of simple uncooked meals, like fresh fruits and veggies, nuts, smoked fish, cheese, etc. I'm constantly amazed at how so many people assume everyone must eat exactly like they do.
I'm amazed when someone assumes others must eat out every meal if they don't have the ability to broil a roast in their home. Though I shouldn't be amazed - the inability of people to understand lives that work differently then their own seems widespread.
