Next thing you know is that you will escort your checkin bag through security, you and it being scanned at the same time, then you will escort your bag to the tarmac line up and hand it to someone waiting to load it onto the aircraft, then proceed to the "stairs" to board your aircraft. Money saved on ground crew, and oh yes an umbrella for your use while waiting in line on the tarmac if it is raining, that is if your willing to pay $2.00 for its use.
I think you missed one step in your summary.
First you will inspect your bag for contraband.......