If I can’t trust someone to pay me I just take payment up front, if they don’t trust me to deliver a product we just don’t do business, no problem. What blockc

If I can’t trust someone to pay me I just take payment up front, if they don’t trust me to deliver a product we just don’t do business, no problem. What blockchain solves for is “I don’t trust my peers to agree on what transactions have occurred” which is only a problem for people avoiding banks.