The problem is not victims, the problem is scammers. There should be better mechanisms to quickly clamp down on them. In this case, it would be really good if there was a mechanism or institution where the victim could report the scam and once verified it would gather information from Google, Dropbox sign, the bank receiving the funds, and other tools scammers use to build a case against the scammer in the relevant jurisdiction, and avoid them using the same tools for further scams.
My strategy to repel scams is to stay humble. Mo matter how much I think I'm prepared to identify scams, I am still vulnerable and I will continue to be vulnerable. Arrogance is your worst friend if your objective is to stay safe. No matter how many ceremonies you do when you're 16, in the right context and with the right words, you will still fall for a talented social engineer.