Wearing another clans Tartan?

[RockyR]

I find it interesting that the waters get murky when it comes to:

1. Pipe Bands
2. Military

When you're in a pipe band, people seem to be happy to put aside their objections to wearing another's clan tartan. I wonder why this is when some have such strong opinions of it in other circumstances. The same goes for MacKenzie, Campbell, Cameron (Erracht), Stewart Royal, etc tartans in Military settings. I'm not poking fun or making a backhanded statement... I truly wonder how this dichotomy sits with those who wear them, but wouldn't wear a MacDonald of the Isles Hunting kilt b/c it's not their clan.

With the vast amount of universal tartans out there now, most held as stock tartans at a mill, I'd think most pipe bands, especially in Scotland where wearing another's tartan isn't generally done, would be looking to change their uniform to a Universal / District tartan OR have their own tartan designed and woven. I would think this especially true of new bands just forming and looking for a tartan to wear.