My phone is in the kitchen safe most of the time as well. I've bought an Apple Watch recently and I was mightily afraid it would increase my phone addiction even more.
Instead, it got way better and I keep my phone/watch in silent mode 99% of the time.
Sudden notifications won't happen anymore and I definitely won't be starting to type out text messages on the watch or start browsing the internet.
Important events, such as phone calls from 'favorite' contacts will still get through though and I still have the option to make phone calls in case of emergency.
Yep! You can accept and make calls with an Apple Watch, even with the non-cellular version, as long as your phone is in bluetooth range. It even works without being connected to headphones, although I can't recommend that for long calls.
With the cellular version and the appropriate mobile contract you're not bound to the iPhone bluetooth range anymore.