Literally no one imagines that they could be the gullible one, or a poor judge of character.
Look at the responses here, so many along the lines of “well of course most of them are frauds…but not the one I happened to see who was amazingly accurate…”.
The world is full of people who have seen frauds but went away utterly convinced they were genuine.
People like Derren Brown have demonstrated again and again how it is possible to utterly convince someone you are psychic but without having any psychic powers whatsoever.
But.. no one ever believes that they fall into the category of people who could be conned. Other people might fall for that sort of nonsense, but definitely not them, they were ready for it and we’re very careful not to be tricked! Note - everyone who goes to a psychic believes they are being careful not to be tricked.
You’d really hope that the penny would drop, that people would join the dots and suddenly have that “aha moment” as realisation dawns, but they don’t.
Better by far to imagine that actually yes, you did happen find a genuine psychic, unlike those other poor people.