I only carry my phone and my wallet when I go out. If I’m driving I bring my car’s key fob, no attached keys. I get in through my garage. If the power is out fo

I only carry my phone and my wallet when I go out. If I’m driving I bring my car’s key fob, no attached keys. I get in through my garage. If the power is out for some reason, I can grab my spare key hidden on the property. Why would I want to bring a physical, metal key around with me? Is it the 1900s?