Alex Massie
spells it out:
After all, curling's advantages are many and great. It is a sport for normal people, not freaks of nature. Physical fitness is not of paramount importance nerve, poise, and judgment count for much more. There's no recourse to performance-enhancing drugs, unless you count a pre-match shot of whisky. And I'd like to think maturity helps.
On that note, curling is a sport in which character counts. Yes, you need courage and skill, but it's considered poor form not to buy drinks for your vanquished opponents. Showboating is frowned upon. There's no trash-talking.