Why the flag of English language is the USA's flag? Why not the Britain's?
I am so curious to find out :)
BTW, the flag would not be a British flag, but a United Kingdom (UK) flag. Britain is a geographic area, the UK is the nation. It consists of England, Wales, Scotland and Northern Ireland, aka Great Britain and Northern Ireland.
The flag is often referred to as the Union Jack, although technically is not really, but the usage has become common.
I thought that the US flag was used because there would be far more users from the US than the UK. I didn't realize US English was taught, but that makes sense too.
Just be aware that the information in the videos isn't completely reliable. He makes mistakes in his discussion of Ireland - he says that "both the Republic of Ireland and the United Kingdom are members of the European Union" which is factually incorrect - Ireland is a member of the European Union. (See the list of member countries on the EUs own website: http://europa.eu/european-union/about-eu/countries_en).
Ireland is a Republic, and may be described as "The Republic of Ireland", but the actual name of the state, as used in all International organizations (such as the EU, the UN and the Olympic Organization) and treaties, is just "Ireland". This legal entity called "Ireland" doesn't encompass the whole geographic entity called Ireland, which my be confusing, but the whole point of the video is supposed to explain confusing labels - if he gets this wrong what else does he get wrong? (To his credit, he does refer to the "monkeys on Gibraltar" - while they are commonly called Apes, they are, in fact monkeys).
At present, The UK is still a member of the EU. Is there an error in stating that "The Republic of Ireland" is a member of the EU when it is listed as "Ireland" I think not since it is not uncommon in non-official usage to refer to it as such and it helps distinguish it from Northern Ireland. It is clearly stated that Northern Ireland is a part of the UK. I don't see any confusion. And yes I do know about the two Irelands.
I found the video cleverly presented in a way that would attract people not generally interested in geographic fact presentations and am planning to use it in EFL classes.
Well, the error seems to be well established and certainly not a cause for so much indignation. My comment stated "non-official" usage. Here are a few other confused utterances:
The England/Britain error is equally well established.
The only one demonstrating indignation is you, I'm simply pointing out that "the information in the videos isn't completely reliable". I've made it clear that I have no idea how many other errors are in this video, or any other videos in the series, but you seem driven to defend your initial expression of satisfaction with the quality of the videos, after it has been pointed out that they aren't as reliable as you initially thought they were. It's the kind of shorthand that is actually helpful in other circumstances, but in a video that is explicitly about correcting misconceptions about correct political/geographical terminology, it's a fairly significant error.
Some languages do have an official flag, see https://en.wikipedia.org/wiki/Flag#Linguistic_flags
But that's not the case of English. There are some unofficial proposals though, for example: - http://vexilologia.deviantart.com/art/OC-Flag-of-English-Language-553460576 - http://vexilologia.deviantart.com/art/OC-Flag-of-English-Language-II-554108744
You might also be interested in reading: - http://www.cs.tut.fi/~jkorpela/flags.html - http://wplang.org/never-use-flags-language-selection/ - http://www.flagsarenotlanguages.com/blog/