Our original doorbell was this tiny little box on the right side of the door. This made it easily overlooked because 1. the box itself is literally 1x1" and the button barely 0.25" and 2. it was located on the opposite side of the handle, where the human eye would look for one. Consequently several times we used to miss lots of packages or people at the door because they'd just use the door knocker, which can't be heard unless you're in the living room or the basement bedroom.

The thing is it's happening again, and I don't know why. There's no excuse. We moved it to literally right next to the screen door handle, which your eyes should go to if you want to open it, the button is fucking huge AND it's illuminated. There's no way you can miss this. Why the hell would you not press it? It's not that difficult. You put your index finger onto the button and press down. I'm certain you can do it.