Doesn't matter where you are. Side loading is a must have for any device, especially phones because a lot of their functions require installing applications. This is like saying privacy is only important if you have something to hide. People are under the assumption that just by enabling side loading they'll open up their phones to viruses or something. If you don't need to just stick to your regular app store but having the option is important. If everything you do on your phone is connected to a single company then you aren't private, it's only an illusion of privacy.