If you use Alexa a lot (like me) to, for example say, "Turn on kitchen light", then consider the fact that you'll now have two kitchen lights. In that case, I'd open a second Alexa account.
but how does it work ?
I create a new "kitchen" and "kitchen lamp" in it.
so what happens if I ask alexa to turn on "kitchen lamp" ?
I don't want to turn on the kitchen lamp at my winter house accidentally.
In the Alexa app in “Echo devices” you will see that each has a “location” defined, including the physical address. This allows it to know where are commands coming from.
What happens is everything is named the same, that I really don’t know since in my case house spaces are named differently.
And therein lies the concern. That's why I would have separate Alexa accounts. I already have a crapload of devices listed under my main Amazon account. I wouldn't want to add to that unnecessarily. Besides, Amazon accounts are free.