I regularly wear the Irish National Tartan, as well as a MacKenzie for the Scottish side of my heritage as well. I strongly embrace my Irish Heritage and traditions. It's the term "Tradition" that i fear some people interpret with vast difference. As far as I understand though, as many people have quoted the Kilt has only really been around for 100+ years in Ireland. But honestly even if the tradition start 5 years ago, I would still embrace it. My Irish family name may not have it's own tartan for me to wear, but I am proud nonetheless.

Most states if not all for all i know in the US have their own tartan as well. These tartans just like their ancestors in Ireland and Scotland should be worn with respect.