Go ask the elderly why they love cold callers and scammers. It is beyond my comprehension how their minds work. If Moses split the sea in front of their own eyes they wouldn't trust him to lend him five dollars, but as soon as there's a scammer on the phone or on the internet, wallets open wide.
I would guess many of them are lonely and are just happy for the attention.
My father made a friend, an elderly man, who was being taken advantage of by some locals. Basically helping themselves to anything in his house, asking for cash, drives places, etc. And he was glad to give it because he had no one else in his life at the time. What's money with no one to share it with? Finally met my Dad, who, thankfully, got his friend to move out-of-state to live with his only surviving family before he passed