Most of those are quite specific actions and they don’t really up to “most of our lives”.

For example I spend at least 8hours watching on wide-screen at work (and a couple more observing landscape screens at home). Reading books, using the fridge, elevators and reading menues or observing statues doesn’t really add up to anything close to that.

Also some examples are a big confusing. Street signs are usually round, square or … landscape. Generally when in traffic you’ll be observing everything in landscape.

I think most people (at least me) are mostly living in landscape.