The smart and motivated ones will try to get to the grocery store. Unfortunately, for most, those services do so much more harm than good. What makes sense for a wealthy professional to pay for the convenience of food or grocery delivery ends up being a small fortune for a lot of young people who can't afford a car to go to the grocery store.
It's a clear short- vs long-term thinking issue, but the reality is most young people are living with so little hope for the future that denying immediate pleasures in search of a future payoff seems naive and pointless.