When I was young there was a discount airline named People Express that actually operated like this. In retrospect I imagine a lot of their nickel & diming would be considered standard these days, but back then it was revolutionary in both good & bad ways.

You’re way late to that party, Ryanair used to charge crew for water.

The forward thinking market leaders we deserve

Spirit Airlines does not give free water. They will give you a cup of ice if you ask.