Lol, yes the pronunciation in many Scottish areas is much closer to correct standard English than in lots of English areas.
But with word choice and grammar it's not so straightforward, bairn for instance would largely be considered to be an informal word and child formal and correct...but the reason they both exist is because they come from different root words.
Outwith is a Scots word that replaced the original meaning of without as it evolved to mean what it does today.
Plural you...it used to exist in English and as it died out it was replaced by yous in Scotland, which many people really dislike as being slang and grammatically wrong, when actually it's no more wrong than using you for both singular and plural.
There are some different grammatical rules as well, though I couldn't tell you them as it's been a while since I studied linguistics.
Now I'm not saying I agree, but there is a whole movement believing that regarding Scots as informal English and discouraging its written use is part of the whole 'keeping down the Scottish people' thing.
So yes I think it's there for that reason mostly, but I don't think it was the right time or place to be making a point about language.