My iPhone 16 fits in my pocket just fine. How are you getting digital deals at the grocery store without a smart phone? That's what I use mine for when out shopping. At the doctor's office or dentist's office I set up my next appointment in the calendar with alerts set up for the day before and an hour before my next appointment. If I get a check, I do a remote photo deposit rather than going to the bank. When I get a credit card bill from the one company that doesn't offer autopay I immediately setup a payment for five days before the bill is due. That way I don't forget about it and get a late charge. A smart phone has so many useful purposes it's impossible to list them all here.
You don’t need a phone to do all of that. We managed very well before cell phones.
It’s kind of scary that people have become so dependent on their phones...