I see nothing wrong with having a few day's food, some emergency heat and light, and water set aside. Out in the countryside where blizzards can cut you off for days it is foolish not to have that.
That's also not quite what "prepping" (preppage?) encompasses.
Emergency preparedness is keeping a full code-compliant container of gasoline in your trunk in case you run out. Prepping is installing a 1000-gallon gasoline tank in your back yard.
Emergency preparedness is keeping a few cases of bottled water stacked in the closet. Prepping is keeping a dozen 5-gallon jerry cans of water in the garage, along with several ceramic filters, chemical treatments, multiple rain-barrels and well-digging equipment.
Emergency preparedness is making sure there's never less than, say, a week and a half of canned food in the pantry. Prepping is keeping several sealed and airtight large plastic tubs full of dehydrated or vacuum-bagged food in foil pouches with shelf lives of five years and carefully marked with instructions as to person/day rationing.
Emergency preparedness is keeping a medicine cabinet stocked with different-sized Band-Aids, various pain relievers, burn cream, and an ace bandage or two, plus or minus a couple of items. Prepping is keeping a surplus army field surgery kit, trauma dressings, clotting agent, cervical collars, oropharyngeal airways, an entubation kit, and other similar equipment in a clearly-marked "go-bag" (unless you keep this go-bag in the trunk of your car rather than your home, in which case you're a Whacker, not a Prepper).
Emergency preparedness is keeping a small portable gas generator for small electrical needs in the event of a power failure. Prepping is keeping a large gas generator hardwired into your home's electrical grid with an automatic tripswitch.
Emergency preparedness is keeping a little one-burner camping stove with a couple of little disposable propane cylinders, the kind you buy in a set of two at the sporting goods store. Prepping is keeping a four-burner self-standing "portable kitchen" with several large cylinders of propane for backup.
I think that ought to give the general idea.