Seems a bit pointless to me.
Just carry normal keys, that's what I do.
No need for all this electronic stuff that may fail.
Convenience. Same reason as why people have "keyless" enabled cars (even though still need to carry the stupid thing) and why smart home industry exist.
Car is unlocked every time I go to it with my phone in my pocket. No need for normal bulky car keys, the backup card form factor is perfect as backup.
Home is unlocked as I near front door with my phone. Then just enter.
Circling back to the topic of the thread, by not using cash, money are counted automatically, not having to deal with loose coins/notes. Then, I simply copy the monthly statement into Excel and label each item to get a comprehensive understanding of my spending.
And you are honestly saying that you have never had anything electronic fail?
I'm not just talking about all this stuff as above, but normal day to day stuff..
It may be selective memory, but I honestly would say I've never had failures so bad that prevented me from relying upon any electronic devices. There have been cases where I had to do some quick fixing (my self-hosted, self-programmed smart home comes to mind). But as long as I'm careful with battery usage, everything always works for me, if not, a quick reboot will make it work.
In similar vein, my wife always complains why her broken electronic devices seems to work when I touch it. I'm just good with electronics
