It might be due to this "feature", but there are a few additional quirks to how the modern food delivery system works for restaurants. First, it is not uncommon

It might be due to this "feature", but there are a few additional quirks to how the modern food delivery system works for restaurants. First, it is not uncommon to restrict online ordering based on busyness in the kitchen, and that would include in person dining. They might still take orders by phone call because the additional friction slows still slows down the order velocity a lot. Second, a lot of restaurants operate _one tablet per food app_, and it's very cumbersome to do this (you'll see a wall with like 4-5 android tablets attached to it). This invites human error, ie an employee may easily forget to activate a service. This second part is slowly getting better, though.