Hmmm, this is where I hold my tongue yet again.
Although, as is often the case, the initial word "why" is not far away.
It's not just the tartan mixing, if someone wore something that that in Scotland it would just be considered really bizzare, as would the wearer.
And, yes, there would be those that would take offence, or believe someone was ridiculing their culture. This is where I sigh and go and do a bit of gardening for a while. You get a nice view of the Kilpatrick Hills from my back garden and I find it quite soothing.