I think it's not exactly apples to apples to compare military tartan to camoflage. Camoflage is so androginous and non-specific that it's not presumptuous (sp) to wear it and be seen in it. So much so that it has become a staple of male wardrobe. THere are so many fashion camo's and designer camo's for specific terrains and foliage. The indicator of a person having served in the military based on camoflage is how they wear it. Legs neatly bloused, Cargo pockets ironed smooth and crisp, sleeves rolled and positioned correcetly. The average wearer is going to look like they slept in the camo. A dead give away.

Tartans on the other hand are more analogus to a dress uniform or a class 'A'. While you will see people who have gone to a surplus store and picked up an old Dress Blue Blouse and wear it as a fashion, everyone knows they did not serve or they would not be wearing the uniform in that way.

I'm of the school that says "wear it with respect.". Respect for the meaning and respect for self. One should be prepared for the question "Did you serve". And be prepared for the few who will find it improper. If I ran into someone wearing a USMC tartan I would absolutely ask if they were a Marine. If they were not, I'd be very interested to hear the reason for the wearing. I'd hope that it is a reason of respect and honor, not just a fashion choice. Though at $400+, a military tartan kilt is not for the faint of heart anyway