When it comes to money, a purely peer to peer system of payment is just not possible unless you are doing barter. Even when you use cash, you are using the cash

When it comes to money, a purely peer to peer system of payment is just not possible unless you are doing barter. Even when you use cash, you are using the cash issued by a third party that both the payer and the receiver trust to have value. Whoever wrote the Bitcoin whitepaper was definitely a brilliant programmer but had no idea about human psychology and economics. Trust is the most important factor in economic transactions. In a complex world like ours third parties like government, banks, exchanges provide the trust. You cannot outsource the trust to code. Code is not law. You cannot solve all problems with code.