It's not because they don't know any better.
It's because copyright protection allows them to force people to do things like buy products multiple times,
like Sony's new claims that you have to pay them for cloud services with music. Apparently it's illegal to copy music you bought to them.
Also things like, forcing people to pay for online season mode and all kinds of other goofy stuff they get away with now.
As for the studies I quoted... they actually had a very good number of people in the study, if you think otherwise i'd guess... you have about zero expierence with scientific studies. Very few studies use more numbers, and you know... you don't have real studies backing up your point of view... at all.
It's like claiming someone else's shovel is green so it's inferior to dig.... when you don't own a shovel.