We now have both. It will be a little tough for a year or two. But we'll be okay.
By the way, the last time Yellowstone blew, the ash only cover everything west of the Mississippi in the U.S. If your east of the Smokey Mountain, you'll probably be okay.
It will not be the end of the world, it will just be a very bad day for anyone caught in the blast.
So...what are you gonna eat for the 2-4 years it will take for the dust veil to clear?