Crews aren't the problem.
Seal the pax up in their own private locked aluminium cubicles. Nice G-rated seat doubling as a toilet as required, big tv screen right there in front of you, coin operated mini bar and food machine, plenty of space for carry on baggage - "the more baggage, the less room for you", blanket, pillow, bottle of water, a couple of magazines, O2, (noisy, drunk pax can have their O2 reduced somewhat to induce sleepy time),lights and ventilation. Doors unlock when the aircraft comes to a complete and final stop at the gate or in an emergency. You can still get a window seat. The cabin crew can review safety manuals and take care of the pilots.
Edited for this and that.
[ 18 September 2001: Message edited by: Rollingthunder ]