Take a phone out into the wilderness and it will drain the battery looking for a signal. Even if you have reception, a phone will not last half a day if you are playing on an app. Keeping a phone turned off for emergency calls only and stashed in a waterproof container is the best way to ensure it will be useable when you need it. Anyone who has spent any time in the field should know this. How can a phone be out in elements, using data and GPS, and be expected to be operable for a day or two to keep you safe. We have a generation of people using electronics as a crutch as well as pretending they know what works in situations they are not prepared for because they have an app.