In America, that's your right. :confused3:
You can all mock as much as you want.
But many tens of millions of statements are printed every month. Then they're shipped (via the USPS) to millions of homes every month. Those are all stockpiled for no good reason until they're eventually thrown away and placed into the waste stream.
There's nearly no company out there that doesn't offer electronic statements now. There are a few people without easy access to a computer, but the vast majority of the population could (and should) be getting all their statements that way. Saving millions and millions of tons of paper, the printing, the shipping, then the disposal of all those statements.
Your grandchildren's grandchildren will think this (dying) system was insane. Technology means it isn't necessary anymore, but nostalgia means people keep doing it.