By trust-less I am referring to a trusted 3rd party (e.g bank or escrow service) needed to mediate the transaction between the two parties. Not necessarily a lack of trust between the two parties themselves (obviously it would be foolish to pay someone you didn't trust at all in an irreversible way, but I can order something from Amazon any day with an implicit guarantee I will receive it or a refund, despite not knowing anyone there personally). An if you are referring to the shipping company that is going to move the goods, that would be a separate p2p transaction (and probably insured) between the seller/buyer and the delivery company.
Everyone who transacts in a fiat currency digitally has a defacto third (or more) party in the bank that mediates the transaction, and even non-digital cash transactions inherently include the central issuing bank (who you must trust not to debase the currency...just ask a Turkish citizen how that's going).
So a transaction using cryptocurrency has third parties, who do just the same thing and require trust, but which you don't want to call "defacto" because...?
Everyone who transacts in a fiat currency digitally has a defacto third (or more) party in the bank that mediates the transaction, and even non-digital cash transactions inherently include the central issuing bank (who you must trust not to debase the currency...just ask a Turkish citizen how that's going).