Did they have trouble navigating the city? Was this perhaps in a city without subways?
We're walking down the street, but all the shops look the same. http://goo.gl/maps/sj3ft
Where can I get some medicine?
The answer is the one that says ”藥行“
On a few occasions, in my own country, I've had old immigrants ask me to read something for them. I don't know if they are visually impaired or illiterate but it wasn't a big deal. (Though it is sad when you consider these people have probably been living here for a long time.)
Anyway, if it's someone who doesn't speak English it's not _that_ difficult to find medicine.
Go on the Internet, google a picture of the medicine you need, and show it to people?
Or use Google Translate? I've communicated with realtors using Google Translate. It was a frustrating experience, but it worked.
And if that doesn't work then I'm sure you can find _someone_ who speaks English. That wouldn't take half an hour, I'm sure. You can also try using gestures or drawings.
This strikes me as fairly trivial stuff. I mean, I'll grant you that I'd be worried sick if my mother was running around in Taipei on her own, as she's not used to traveling and doesn't speak English. But we seem to be talking about young, smart, educated English speakers here. It's not that big a deal.
Edit: said->sad
If you're a foreign guy in China there are always tons of girls who'll go with you to wherever you want to go and who'll translate for you. If you speak just a little Chinese you can have a very comfortable life there.
Update: that's in the major cities anyway.
By learning the characters (especially if you learn the radicals inside each character first) you can build up an understanding of the context of each character that you're using.
For example, how would you go about learning the response to the question "Which zhong?"
zhong guo de zhong / 中国的中
("the 'middle' character from 'middle kingdom' (China)")
and knowing to give the correct response when someone is confused about what you're saying in a sentence (which can happen a lot when you're a beginner who makes word order mistakes.)
I used to use Memrise for this ( http://memrise.com ) but since they updated the UI you can no longer clearly see which dependent radicals a character has easily, so I've accidentally stopped practising.