Free lunch. Well.
Define 'free'.
Basically in SKA you have a device, like a tablet, that has your personal information and other information on it (licenses, more stuff I have yet to think up), for example, how many more kg of food you can have that day/week/month. You take this everywhere with you, it's like a debit card or wallet or some analogy like that. It can access the internet and the international knowledge database and stuff. You basically digitally scan some register-like device and it subtracts the amount of food from your "allowance". The food is further subdivided into grains, vegetables, etc.,. You can go to whatever restaurant or you could go to the generic "store" that has food that you could make, or I suppose you could grow your own food a lot of people do that too. If you produce extra food, it can be given to the government bank of food and it will be taken to the "store" or a restaurant.