[harrisonjackson]

Facebook should just make a user's location required - not the ios permission to constantly track a user all over... but just a field on a user - city/state/country.

Or make it optional and just show that ad to users that have set their location field.

[esrauch]

I don't think that's relevant here: the new prompts aren't about collecting gps data but correlating your identity across contexts. If you manually chose a city in Facebook, I think the ad in the other random app which used fb ad network would only be able to use it if the user said "yes" to the prompt.