Yes, and it's completely mediocre at all of them. Plastic casing, a screen that's too small and an ancient SOC that chugs and stutters with every swipe. The NFC chip is notoriously temperamental and doesn't work half the time, either.
I've had two Sony watches, a Gear S3 and the Huawei W1 so forgive me if I don't want to blow more money on a third Android Wear watch only for the same old story - NFC chips that Google refuse to allow to work with Pay (Sony SW2) and devices that generally get abandoned and left on old software. Even Samsung is allegedly ditching Tizen for their next watch, leaving that out in the cold. No thanks, I've had enough.
Again, the FitBit Versa is quite nice but it's too feature-crippled to genuinely qualify as a smartwatch.
No it's not. If I'm going for a run/bike ride etc I don't want cash jangling around in my pockets. Also, it doesn't have to replace cash, it can merely complement it. Should we ditch email and instant messages because carrier pigeons and the postal service still work? Some progress is good.
I don't know where you are based, but in the UK we have had 'chip and pin' and contactless payments for over a decade so being 'cashless' is a way of life. Using your watch/phone is no different to a contactless card. It's all just numbers in a system anyway and 'cash' is merely paper and metal.
It's impossible to control all of it. Part of living in a functioning, modern society requires electronic payments. You can't buy something from Amazon with cash, for example. Try going to buy a new car with a bag full of paper money - the dealership will call the police. You don't have to go all-in with any one thing, but the convenience of progressive technology is not something to always fear.
Partially. I have unlimited SMS but MMS is, as someone else mentioned, roughly 40p per message and heavily compressed (video is useless). It's an unnecessary cost. But I also use WhatsApp as everyone I know is on it and it can be used on any device - phone, tablet, Mac, PC, Android, iOS, even Web. It's iMessage functionality without the platform lock-in. In my family, I'm the only one with an iPhone so iMessage is a non-starter.