While my smatphone is smarter than any smartgun needs to be, its not as reliable as my 40+ year old Mossberg.
That Mossberg and its ammunition went on the shelf and sat for 40 years without being touched.
I dusted it off, loaded it up & fired just fine after all those years. I put a hundred and sixty rounds through it the first time out.
If I put my smartphone in the closet for a month and I left it there, when I came back it would be completely dead and useless.
Now, if we can make a smartphone read your fingerprints, why can't we make a smartphone that never goes dead?
As you can see it's easy to ask stupid questions but it's not necessarily easy to have everything you would like in this world.
People who are convinced that they can "have it all" don't have a solid handle on reality.