Och, laddie, I thin' they're bein' a mite roof, noo.
There are perfectly straightforward reasons for all of this.
The diet is dictated partly by geography (which can only support oats, kale, and sheep), and by the echoing influences of Calvinism (which produces a subconscious desire to avoid material pleasures in order to expiate one's sins). Add in the fact that all Scottish cuisine is based entirely on a dare ("Ye'll nae ea'
THA', Angus MacDrydock, ya wee girlie-mon!") and the food starts to make sense.
Drinking? Well, bear in mind that Scotland is simply crawling with venomous reptiles, and so it's vitally important to remain extremely relaxed at all times. And you'll need a bit o' warmth now and again...th' wither is nae sa gude.
Exercise? Out of the question. Th' wither is nae sa gude. And, of course, there are all those snakes to worry over. In fact, keeping the reptiles at bay is why most Scottish sports involve heaving objects that are either large and heavy (cabers) or completely disgusting (haggis). While curling does prove to be helpful in keeping the deadly ice-loving White Mamba away, it actually began as- and still is- a huge national inside joke. Long ago a group of Scots, well into their cups, devised the silliest game they could possibly dream up. Their purpose was twofold: to hornswoggle the Canadians into taking it seriously, and ultimately to try and get it named an Olympic sport. And it must be conceded- their devious plans have proven spectacularly successful.
Smoking? Well, of course everyone knows that smoking is really cool...and no one is cooler than the Scots.
So, put together, it all makes sense.
The years may be few...but they'll be damn fine.