My first steak sandwich was at Pats about 1938. Accept for WW2 I had a Pat's at least twice a month during dating years. I would stop there after a date. Pat's is open 24/7.
There was not cheese until about the '50s. Provolone is the way to go for a cheese steak. How can it be cheese when it comes out of a can and slithers out of your sandwich?
While it is true tourists go to all three, they are not tourist traps. Most customers are locals