It's not necessarily about their brains not working but rather about lacking experience with online communication and fraud tactics! And it's not just old people
It's old people particularly and most of it is being done over the phone; something they've used their whole lives. Cognitive decline with age is real, no sense in denying it.
I think they’re just saying no one group is immune.
Yes, and thinking about it, I believe they choose specific tactics of deception or scams for each group