Chicago rolled this out a while ago. With likes of Apple Pay, we are getting to the point where you can leave home with only your phone (and a charger) to be able to buy food, clothing and get rides (Uber/Lyft/public transportation).
2. With Apple Pay, no more worrying about your wallet getting stolen or lost (and spending lots of time replacing ID cards, credit cards etc) - phones can be quickly tracked/wiped remotely and would-be thieves are less likely to steal one that is secured.
3. Get one of the smart door locks that accept biometrics or a key code and you can pretty much leave home without your traditional wallet and keys. Your phone can get you through the day if it has enough juice.
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