I do wonder what has changed "North Of The Border".
The Scottish Regiments have a lot of history/tradition behind them, but they have been seriously understrength for sometime.
The SNP are simultaneously anti-military, everything from opposing Trident all the way to opposing the Cadets, but pro-military in the sense that they take personal affront to cuts to any Scottish battalions and are keen for warships to be built in Scotland. Bizarre as it sounds, the Scottish voters love it as you can see from how many SNP MPs they voted in.
Truth is that the Scots Guards cannot do a job that you would send a battalion to do, neither can the others. So what are they for? Not for any reason that people want to join them to do, that much is clear.