When I buy my groceries for my grandmother who is in another country I am not buying a gun or bullets. I can support her from a thousand miles away. Every day I use the internet for most of the day. I communicate with people in ten countries on my various work projects. I use AI to support about half of the tasks that I do. Sure the military wanted reliable communications, but so do lots of other things.
I haven't use money for four years ( literally) until I went to India last month. I didn't even have a purse any more... I didn't know what to do with those folding pieces of paper and what is a coin for? I pay for everything with my watch now.
Obsolescence is getting less. My last laptop lasted eight years. This one is already five years old (and it's still kick ass and it will be a few years before I replace it). I've replaced the battery in my mobile and it's five years old (and still response and awesome)
When I was a child we installed a telephone in the house. To talk to other people we often had to 'agree a time' as they would be in a phone box and we would call the phone box. When I went cycling I took coins with me for the phone box and rehearsed how to 'reverse the charges'. And had to remember where the phone boxes where (not every village had one). Now I can talk to my children with a verbal command to my 'PAN' while I am walking in the alps. And I play with them twice a week for a couple of hours even though they are in different countries.
My point about cars was that they haven't progressed the same. As I say if they had we'd get from New York to Paris is one second. But they are no longer understandable or maintainable to people without the dedicated tools. They are entirely computerised.
I think Johny Mnemonic was influenced by William Gibson and maybe Walter Jon Willaims which is I think the source material that Shadowrun came from too. Take a look at this if you haven't read it.
https://en.wikipedia.org/wiki/Voice_of_the_Whirlwind It's just 'wow' and massively shadowrun although without magic (and came out before)