Hello,
This is required for our billing process. Obviously I really do not care where you live I'm not going to send pizzas to your door.
While we want you to provide your real informations, many people just provide some random stuff. And we are not the police we are not going to verify your real identity.
But in our case, our billing process requires those informations, for our invoices aka legal stuff. What the customer sends us is his own responsability.
In conclusion: we encourage you to provide your real informations, however if you don't like it, we can not stop you from John Doe'ifying yourself
Enjoy.