Your example of delivered food is a case where the balance of extra cost and unpredictability avoided can vary significantly. If I want fish and chips I can walk to the shop in less than ten minutes, or drive in even less time, or I can order through Deliveroo. If I order online I pay 50% more, and the shop receives less than half of what I have paid. That sounds like a bad deal for everyone that matters, so I only do it during a Covid lockdown.