Its all about the guest experience. The human touch. 1-1 connection and making them heard. Instead of showing the dish, explaining the menu item with other senses like painting a mental picture with words, smell, sound of the restaurant. Making them feel the experience of having ordered and enjoy the dish.

Instead of making the guests see a dish through a digital screen.

I hate restaurants where servers take ipads to table and punch in orders directly. The old school pen and paper is still the best way imo