Sometimes people are dressed "don't" because of these type of idiotic advertisements and unscrupulous salesmen, who don't give a damn about how a customer will look as long as they can sell them something.

Not all are educated (kiltwise) and rely on what they're told...by friends who don't know anything either or worse...by a "cunning" salesman.

At the Scottish Festival someone came to my stall to buy some accessories for the kilt he just bought. He used his trousers belt to prevent the kilt from dropping on the floor. The kilt was several sizes too big for him. when I told him this, he replied the guy who sold it to him told him that this was normal and a belt should keep a kilt from dropping.
I send him back to get a better fit or his money back...he got his money back...they didn't had a kilt in his size (doh!)
I send him to another kilt selling stall and he came back with a beautiful ex-rental Cameron of Erracht kilt and he looked great!

Some just don't know or get bad advise.

I still think it's a small effort to do some research before you buy a kilt