You can take down your mail box, the the bills still have to be paid or no electricity, phone, computer, gas or Direct TV...If you don’t pay your mortgage you’ll love being a bag lady or man in Manhattan. They get no mail either..
Now, I receive most of my bills through email and I pay most of my bills through the banks auto pay feature, so the only mail I get is junk mail. I could function completely without the postal service coming to my door. I admit I still have to mail a few things, I probably use one or two stamps per month.