not so fast
Not all passengers book 30 days in advance, and sit next to the printer ready to pounce and print the relevent boarding passes.
I frequently have my operations book flights off duty for me, at 1 days notice....that our life...... they book from the office, and send me an sms with trip data.... I then run from my trusty steed, to the main terminal...and find no check in, no staff, and a security desk that will not let me pass....or even worse, as it was not my CC that made the booking I am treated like a hijacker.
I can only assume this is progress.
glf