There are times and situations where a flashlight just doesn't cut it. Every time you're using a flashlight, you're multitasking. That means you're using your free hand to do something else and you'd rather have both hands freed up to focus on the task at hand. It could be the difference between life and death, on whether or not you can protect yourself, on finding your way or staying stuck, or just a matter of convenience. There are situations where you just need both hands to deal with a perp, set up your gear, or manage the everyday tasks made more difficult under the cover of darkness, even if it's just fixing a flat.
When we look the survival rule of three’s; three minutes without air, three hours without shelter in harsh conditions, three days without water, three weeks without food we have to face it that food is at the bottom of the list.
That doesn’t mean that we should ignore it though, having to forage, hunt and scavenge for food is a time and labour intensive activity so being prepared for emergencies with a well-stocked pantry or for outdoor adventures with well packed provisions if you’re headed out on an expedition is essential.
Sometimes being prepared requires you to have a light on you at all times, too often people rely on their mobile phones to light their way if they need to find something or do anything in the dark. Not only are mobile phone batteries drained very quickly by using the torch but in an emergency your phone is probably better preserved for contacting other members of your party and making emergency calls.