Is changing your router password really going to change anything though? Most people don't even know how to log into their router settings, let alone update the firmware. A coffee shop printed password is about convenience, not security, same as your home setup. The real risk isn't the password being visible, it's that people leave default settings wide open on smart devices and never update anything. If someone is close enough to your wifi to hack it, they could just as easily knock on your door. I get the point, but we're all choosing easy over paranoid and that's a fair trade for most.