I try not to use things that show my current location all that much.
But if someone downloads a photo off Facebook and finds out that once, in the past, I was at the movie theater... well...ok. I really can't imagine how that's gonna come back to hurt me in any way.
I think your mom's overreacting.
Exactly.
I see a lot of things like this in the news.
The only thing I wouldn't do is Geotag photos at my house - specifically any that showed something valuable.