Although I agree this is yet another cost saving downgrade, I'm sure they'll run one of the tablets over or even take your order for you should they need to. They'd need to have some sort of system in place for people who are visually impaired for example. But you know they'll only do that begrudgingly.
I'm not against you having the facility to do this. But basically you're almost being forced to use your own device and your own electricity to give them a substantial amount of your money for a small amount of overpriced food so that they can save on labour costs. What a magical and welcoming experience.
At Chessington, where these bunch of cowboys have already taken over, you were almost forced to use the order point screens in Burger Kitchen. The screens had virtually no customisation available and if you wanted to pay cash or wanted something simple like no cheese in your burger, maybe because you're lactose intolerant or something, you couldn't use them. The counter was set up in such a way that it was just a big collection point and me and someone else had to wait there, not knowing what to do for someone to notice us. All backs turned preparing orders. It took almost 10 mins until someone managerial looking saw me and another gentleman looking at them confused before someone was sent over, with a hassled look on their face, to ask us if we were ok. Then to top it all off, the food was crap. You don't need a crystal ball to see where all this is going.