I used to wear a fanny pack day in and day out. But these days, yes, I will admit that you rarely see them in urban settings except for two circumstances: (1) tourists on vacation, and (2) elderly men with concealed guns in them.
On the trail though, I still see quite a few.
As one of those 'elderly men with concealed guns' I can testify that nobody pays any attention to me or my fanny pack.
Which is just the way I like it.