iPhone Do Built-In iOS7 Apps Require Permissions? (esp Calendar + Location)

Apologies if this has been answered elsewhere, but I've been having trouble with the Calendar app. I've not been getting it to auto-complete or locate my Location field on a map, which I believe is something it should now do. Whilst I've searched on here and elsewhere, the most likely solution I have found is to turn the location service for the calendar off and on again (which other users seem to have found to work). That's absolutely fine, however...

... Calendar has never asked me for permission to use the location services, so it does not appear on the list of apps which have made the request. My question is therefore this: do Apple's own built-in apps need to ask for these permissions, or does it simply assume we would be ok with it? If we do need to explicitly request permission for location services in Calendar, does anyone know how I might force the phone to ask me? I've pretty much tried everything I can to get it to ask me the question, but it's never appeared.

Any ideas? Or any other ideas about why Calendar might be refusing to complete the Location field as it should?

 

Perhaps I got the wrong end of the stick. Does this only happen on Mavericks?

 

That's answered that one then! Thanks both.