Nail on the head. Your TV example is spot on. People just don't appreciate the benefits of modern tech until they experience it themselves. The old adage of "you don't know what you don't know" is so true.
Take banking apps, it's simplicity itself to stop a card the moment you lose it or it's stolen, you don't have to faff around trying to find the bank phone number then waiting in a queue, etc. Likewise, increasing or decreasing a credit card credit limit. People who don't use banking apps, just don't realise the benefits they're missing.
Like parking apps. With a pay and display by cash, you have to get back within the time allowed. If you need longer, you have to remember to go back, buy another ticket, etc. With an app, you buy the time you need, you get a text reminder when the time is running out, you get the option to extend the time remotely without going back to the car, etc. Again, until you do it, you don't realise what a benefit that can be.
Having your store loyalty cards on your phone means you don't have to remember to carry 5-10 of them around with you "just in case", and you don't lose out on the member's offers/discounts/points etc if you find yourself unexpectedly in such a shop. I remember a couple of years ago being severely annoyed I'd left my Tesco club card at home, and wanted to buy a box of chocolates that was half price £3.50 with a club card but £7 without. I had no choice but to pay the £7! Immediately after that, I looked into how I could put the club card on my phone!
People aren't embracing tech for the fun of it or to be seen as modern, they embrace it because it's better than the old ways. If it wasn't, people wouldn't be using it and we wouldn't be seeing the meteoric growth of apps etc.
Take bank branches. Our village lost it's bank branch in the mid 90s. The bank gave the reason as reduced footfall due to village shops banking less cash, local businesses not drawing out cash to pay their staff wages, local villagers using the branch less as they were using the hole in the wall for cash and telephone banking for paying bills, transfers etc. That was 30 years ago. The writing has been on the wall for decades.