If the world worked on a barter system, how would you fare? Would you have services to barter? Would you be successful, or would you struggle?
I think I’d be all right if the world worked on a barter system. The service I can provide is teaching, I’d teach anyone who wants to learn and in return for my services I’d want the parties interested to provide food.
It will be successful I’d spend my time teaching and the interested parties who want to learn will bring me food.
I see success and not failure, as long as the parties understand each other.