@pnuts good point

@Max I get where you're coming from, but I just want to go to a restaurant and eat. I've found an online Michelin guide, but it's not very easy to simply peruse. There's no "main ingredient" index and each restaurant's description is hidden behind a link. gm.gnavi.co.jp/restaurant/list/tokyo

What is your question? Are you asking if there is going to be some sort of problem? How to update the information to include the child's details? Something else?

Along with @Tom's comment, are you talking about cooked or uncooked food (that has been prepared for cooking)?

@Mehrdad I can't speak for Thailand, but in Cambodia, many tourist attractions have protectionist pricing schemes where foreigners pay "full price" but locals pay (almost) nothing. just speculation, but maybe something similar is happening in Doc's example. Also, there could be some sort of reciprocation agreement with another country--you might not get info on the passenger's nationality just from their ticket.

@KevinFegan is correct. I included the Korean information as an example of why I was posing my question. I shall try to edit my question to better reflect my intent.

I just asked this question. I have to wait 2 days to offer a bounty.

No, I haven't. Those questions are also 2-3 years old and do not apply to map apps, just online map services.