Forbes [0] claims 11% have never left their state, but it doesn't cite a number for people who have never left their town. It has to be smaller, of course.
Meaning 89% have left their state, to say nothing of their hometown. So GP is totally wrong.
Not to mention there are many states you might not get out of in 200 miles. 200 miles from the Californian coast is still Cali unless you’re at the northern or southern edges.
[0] https://www.forbes.com/sites/lealane/2019/05/02/percentage-o...