Mostly, but also take it when I fly, along with a mouse + mouse pad. The weight has never bothered me, usually the backpack with the laptop in it is the lightest bag and then I have a much heavier carry on as well.

So that makes sense it is not issue for you if you mostly travel by car. But it can be for those that use bike or public transport or just walk. (As example last time I used car about two months ago).

americans lol. and i say this as an american. :)

Most of my friends assume the default mode of transport globally is a car. Even to get to a cafe or library.

Pretty funny when you think about it.