Western mobile phone film?

Americans also cover their mobile phones with film. There are many kinds of mobile phone cases in the supermarket, but the land here is vast and sparsely populated, unlike where we can find people to post them casually for ten dollars. All the people I know here have bought their own film stickers. Some colleagues even put a protective case on the MacBook. But in my unit, there are very few people who wear protective covers for iPad, and most people just use them naked. I don't know why their attitudes towards mobile phones and tablets are so different.

Generally speaking, enough people must use these things, otherwise the official Nexus and iPhone cases will not be sold on Google and Apple's official website.