Its definitely widespread, I didnt want to imply it was just your family. There is a large group that cant handle admin rights responsibly. I just dont think general restrictions are in order here. We should much rather educate this group instead of giving up ownership over our devices. Especially since we dont have the appstore model out of security considerations, but because monopolists want to keep people in walled gardens. Ownership of your device is to great of a good to give it up in the name of security.