It is possible. Maybe when the whole world accepts crypto and it became a big part of the economy or the in the service trading systems that it would managers to keep track all those transactions.
I understand your point, but I think it's more to filter out the scammers ... or higher the threshold for them to scam ... how can you trust someone on face value? Do you ask for track records? or past performances? if so how much security do you have that they will not run away with your money this time?