I am always asked for ID at the branch in my new hometown except for today. I cashed a $26 check and wasn't asked. I also thank the tellers when they ask for ID.
Never put your outgoing mail in the mailbox outside your house for the mailman to pick up. That's just asking for trouble.
As annoying as it is when the tellers ask us for ID, it is for our own protection. I rather they ask too.
As far as putting mail outside of our house, I used to do it and people here do it all the time. I never gave it a second thought before.