For example, for farmer's market, your profile will be visible to only coworkers at that time and when during bbq at your house, your family members can see it. It's a one time setting, I think it's cool.You don't need to built it instantly, you can go in phases.
I think Insta has rolled location thing, but here I'm talking about location + personas, I hope you understand my point and I'm not making it complicated ?