I'm guessing wish fulfillment fantasies where the player inserts themselves into the world rather than playing a role.
If I learned anything in my decades of tabletop experience, it's never allow someone to join that has that in mind when everyone else is actually playing a role. Never ever. And kick their asses out as soon as it's obvious that they're going to take any setbacks or inconveniences for their "character" as an attack on themselves.
I'm guessing wish fulfillment fantasies where the player inserts themselves into the world rather than playing a role.
I also curious about the real answer, though.
If I learned anything in my decades of tabletop experience, it's never allow someone to join that has that in mind when everyone else is actually playing a role. Never ever. And kick their asses out as soon as it's obvious that they're going to take any setbacks or inconveniences for their "character" as an attack on themselves.