The tours are self-guided. Plus nowadays you just can’t walk in off the streets for a tour. You have to arrange it ahead of time through your congressperson. Given that so many of us don’t want to make the effort, plus I personally wouldn’t ask my idiot congressman for anything, I wonder how many people does the White House get for their tours.
With Obama in the crap house I won’t even go in the vicinity of DC or northern VA, even though I have family there, much less the crap house.
The White Hut would have to be fumigated at least six times before I’d visit it.