Mainly because a stove is rather cumbersome to carry around. But most people carry a (smart)phone around anyway, so why bother with a wrist-chafing watch on top of that?
You've been wearing your watch wrong, I think. A watch strap should be adjusted to give a comfortable fit on the wrist, I bought a cheap GBP 10.00 stainless steel band for my LG Watch R (Android Wear) that I then got adjusted in a small watch repair market stall by a friendly Russian gentleman for another GBP 5.00 and my watch now fits perfectly. The watch works just like an analog watch with always-on time and is a useful addition to my smart phone...
But more importantly I wear watches because I enjoy wearing them. I enjoy choosing my watch based on what else I'm wearing that day. It's an accessory and fashion choice.