by consolidating all tools into one tool, the bus factor is now 1. by consolidating all tools into one tool, the quality of individual tools decreases (eg. phone flashlight is adequate for small jobs but is much less effective than a torch). every single god damn person on the train sits there with their head buried in their consolidated tool screen, nobody socializes. there seems to be plenty of issues, privacy notwithstanding.

My favorite gym was a small one where the staff recognized the members. I didn't need to carry anything.

At a couple other gyms (these were some 20 years ago), you gave your name when you came in, they pulled up your photo, and checked if it was close enough. Again, no need to carry anything.

That requires staff, which is expensive, but my point is to highlight there are options where you don't need to carry anything. Those sound like the world I would prefer.

While a phone may often be more useful, it's not infinitely more useful than other options. When I used to regularly swim at neighborhood pool, which is in walking distance, I had an RFID card to get in. The card could fit in my swim trunks. When the weather was warm enough I could walk to the pool carrying only card, towel, and body wash. I didn't bother getting a locker. A phone would have been less convenient and therefore less useful.

Some states have an official app that is accepted as your driver's license, and most stores take NFC payments from your phone, so many people don't even need a wallet anymore.

I used to have a ring of like 2-3 dozen keys. Now the only key I need to carry is for my car.

I don't have to pay a thousand bucks to a guy I don't really like for my wallet.