I thought the author's take on trews was interesting, to say the least:

What you must never do, though, is wear trews, which I have always interpreted as the apparel of a man with something to hide.
And I was entertained by this part too:

“I consider myself a traditionalist,” says Nicholsby, a statement which must be more shocking to the tartan-lovers than his pink PVC kilt minus the sporran. “I wear a kilt every day as it was meant to be worn, as an everyday piece of clothing.

“In the olden days, the kilt was probably of much plainer material. Watch the films Braveheart and Rob Roy and you’ll see they’re wearing close dog’s-tooth check, which is really the original tartan. The kilt was an everyday piece of clothing and still is.”
While I agree with (and applaud) his approval of the kilt as an everyday garment - not just for formal wear as was mentioned elsewhere in the article - I can't believe he's using two Hollywood movies as some sort of factual reference to history. His point on the "original tartan" dog's-tooth check may be valid (or not - the historians can hash that one out) but his sources are fairly suspect.