Open Settings
Tap Privacy & Security
Tap Location Services
Turn off Location Services
Enter your passcode if prompted
To turn off location for a specific app, stay in Location Services
Tap the app
Select Never
To stop sharing your location with people, open Find My
Tap People
Select the person
Tap Stop Sharing My Location
To turn off Share My Location, open Settings
Tap your name
Tap Find My
Turn off Share My Location