I know that what dialogue there was wasn't important, but it seemed to me that she wasn't speaking English, and she wasn't speaking French. Was it Russian? It makes me curious what she was doing in that little Scottish village.
It's not made entirely clear where Alice lives, but we can presume it's one of the islands off the West coast of Scotland. Although Gaelic is not widely spoken in Scotland as a whole, it's still quite common in the Northwest, and there are a number of places (most notably the Outer Hebrides) where you'll often hear it spoken as the first language, over English.
Well, it goes to show that Gaelic is prevalent enough that an average person like Alice might speak it all the time, rather than bothering to get used to straight English (or French for that matter). Relevant enough.