It sounds like you're suggesting a barter economy. It works like this:
1. Bob grows oranges, and wants shoes
2. Ted hunts for meat, and wants oranges
3. Sam makes shoes, and wants meat
The only way this can work is to have a 3-way transaction. But with a money system, the money is traded without needing a 3-way transaction. It's much more efficient.
1. Bob grows oranges, and wants shoes
2. Ted hunts for meat, and wants oranges
3. Sam makes shoes, and wants meat
The only way this can work is to have a 3-way transaction. But with a money system, the money is traded without needing a 3-way transaction. It's much more efficient.