I wonder if stickers in general are more common in the US just like bumper stickers are.
As someone based outside of the US, I rarely see people with stickers on their laptop.
The very vast majority of cars also do not have bumper stickers here (and those that do might have one at most).
I agree, in Australia you see plenty of them on laptops, water bottles and just out in the street like you said.
We do have a lot of stickers on cars too but it's more common to see them on windows of the car not the car body, and I think in general they're socially quite different to what you'd see in America. More like brand stickers and hobby stuff, or jokes, not so much politics or religion.
