Drink and snack carts are:

• Physically disruptive: they block a plurality of passengers from accessing a bathroom at all times and they frequently hit passengers sitting in aisle seats
• Noisy: hearing flight attendants say the same thing to every passenger is tiring, especially if you're trying to sleep
• Distracting: if a cart is coming by, you can't concentrate on what you're doing because you know you're going to get interrupted to ask if you want something
• Wasteful: I always get a weird look every time I ask for a "water, no napkin"

All of this persists for what seems like way too long on short-haul flights.

Shouldn't we just be able to pre-opt-in to drink and snack service via the inflight entertainment system and have the goods delivered only to those that want them? That seems like it would solve all of the above issues.

I know that Southwest does the pickup trays, and United does them on <1 hour flights, are there any airlines that are innovating in this department?