There is even a site where you can buy leftver food that people haven't eaten! This is sure to save you time and money. Buy is it risky? Can you trust the people cooking your food? Restaurants have to follow strict regulations to make sure their food is safe to eat.

There is no doubt that the sharing economy is growing. Some economists think it will be worth $335 billion by 2025. As new technology makes sharing food, accommodation, and transportation easier, all the time, the question of ''Is it fair?'' will remain.