If fiat controllers were trustworthy, fiat would win, hands down. The way fiat isn't trustworthy is that it steals small or hidden amounts of money from everyone. Most people simply don't know it. But if they know it, they don't understand how it works, clearly.
With crypto, any stealing is done between the two parties to a transaction, only. That's it. However, if the two parties use escrow (a third, party that has no interest in the trade), safety increases to almost 100%.
To see how escrow can be made to work well, learn how
LocalBitcoins works -
https://localbitcoins.com/.
