When you go to a restaurant and order yourself some food, you expect to get what you ordered. But, alas, sometimes that doesn't happen. We've all been in a situation where something is just wrong -- your salad comes with an ingredient you specifically asked to be omitted, the server forgets to bring that drink you wanted, or the hamburger you wanted comes as a cheeseburger. These are minor errors, sure, but they can be annoying. Most restaurants aren't in the business of annoying their customers, so they try to avoid those types of mistakes.

But if you go to Toyko, you may find a restaurant where mistakes aren't uncommon, or, for that matter, minor. But not only are those errors acceptable, they're celebrated.

Why? Because of Japan's demographics. Let's start with a graph.

One older woman shows her guests to a table and then sits down with them. Another serves a hot coffee with a straw. Yet another older woman struggles to twist a large pepper mill, not entirely sure that the pepper will fall where it’s wanted. Everybody at the table pitches in to help, and with cries of “We did it!” all join in the laughter. However, “The restaurant is not about whether orders are executed incorrectly or not,” notes Oguni. “The important thing is the interaction with people who have dementia.”