Maynard wrote No, you can fix stupid (it's called learning).
Being a d'bag who would make a crack like this over a guy losing 20k is the one that really can't be fixed.
It has nothing to do with being smart or stupid. The good scammers have & can gather a lot of information to make older people think it's legit.
My wife received a call from my grandfather asking if I was ok, and/or in jail because he had received a call about bailing me out. They had all my info, addresses, phone numbers, kids' names, etc.
Thankfully, my grandfather is a retired Chicago Police Officer & my 2nd cousin was the Sheriff of the county where they told my grandfather I was detained. He called my phone first, I didn't answer, called his nephew (the Sheriff) then called my wife to double-check.
Had he not been a retired LEO, and had a nephew who was a LEO in that jurisdiction, I can see how he might have been scammed to send bail money.