Think of the Apple Watch as something that you can use to reduce your phone usage. If you get the one with cellular and GPS, you can go walking/biking/outside and be reachable while at the same time not staring at your phone all the time. Even when you are at home the justification, for me at least, to keep the phone closer was because I might get a call or message I need to respond to. With the Watch, the phone goes straight to its stand as soon as I get home knowing well that I'll get the notification on my watch. This is what's finally helping me wean off the constant need to keep my phone and pull it out to check instagram/hn/reddit repeatedly if I'm bored for even a second.