[iOS] Why no privacy alerts in simulator?

This is not a bug. This is the restriction on simulator.
From the iOS6.0 release note, we seen that apple doesn't the privacy alerts in simulator.

Simulator

• No privacy alerts are displayed in iOS Simulator for apps that access Photos, Contacts, Calendar, and Reminders.
• For this release, iOS Simulator does not support testing In-App Purchase. Please use a device to test your apps that use this feature.
• When attempting to play an MP3 sound in Simulator, you will hear a popping sound instead.

Source:iOS6.0 release note