I'd go a step further and predict once we get used to the idea of wearing a small device on our wrist again, there will be no going back, and most of the die-hard nay-sayers out there will warm up to, and embrace this coming logical extension of the way we are communicating and using technology in the 21st century.
I agree with your basic premise, but in a few decades we're likely to be wearing tech inside our bodies instead of merely on it. Wearables are still a transitional technology. Something you carry -> something you wear -> something you are. Cyborgs and neural interfaces may sound science fiction today, but smart watches were science fiction too not that long ago.