People spend money on Rolex watches that only do one thing, tell the time. I don't see how it is that much a stretch to buy an Apple Watch because it's shiny, bears the Apple logo, and tells the time well.
Whenever I was using my Galaxy Watch, I had blown the minds of many a gas station attendent that didn't know they supported NFC, and got asked to leave a Lowe's once because they thought I was 'hacking their terminals'.
NFC/Tap to pay/Apple Pay is still new to folks where I live. It's becoming ubiquitous in stores, but managers and customers are still quite technophobic.
Mom had a BlackBerry Torch and she didn't know it had a slider keyboard. She'd been using that terrible touch screen the whole time! She also had an iPhone 6s and didn't even know about 3D touch. She's got an 11 Pro and I had to help her with the gesture controls.
Age is the common factor here. The older the person, the least they'll take full advantage of anything. My dad had an OG iPhone and all he used it for was calls and Wifi + Safari. He never got into texting or apps. He was given the iPhone from a friend when AT&T killed the GPRS network and essentially bricked his Moto Razr V3. The iPhone was on T-Mobile at the time.
As for Android Wear/Wear OS, it's probably next on the Killed by Google chopping block. It's had a name change and is still half-baked and unsupported/dead. Great face selection though. But that's it. A lot of base features that were part of 1.x before the 2.x redesign got broken in the redesign. They also removed certain useful features such as wrist gestures and the Google Now cards. Now it's just an inconsistent notification platform with a few apps and tons of third party faces.
One reason I stopped using Google apps (besides privacy concerns) is because they got a short UI attention span problem. They keep changing things and rearranging stuff and I hate that. Pick one UI design and improve it over time, but stop with the constantly redefining Material Design thing.