If the airlines want to save money they should change the number of Flight Attendants per flight requirements. It should be based on passengers/flight hours. I would suggest 1 FA per 100 pax/hour. Drop the FA requirement for under 100 passengers on a flight scheduled under an hour. If a passenger is in need of assistance on these short hops the Co-Pilot can attend to them.
Most flights anymore show the emergency briefing on monitors. Movies are accessed by a phone app and they rarely serve refreshments or snacks on short hops anyway. Longer flights can have an app for ordering/paying for $20 crackers and coffee.