Newbie Kilt wearer retired firefighter

[KennethSime]

Since you asked, yes, many will consider it bad form. Clashing tartans is "trying to do too much at once."

Here's a perspective that hasn't been presented yet.

When you're wearing a kilt in your family tartan, you're honoring your ancestors, and your heritage.

When you're wearing a kilt in the Firefighter tartan, you're honoring your fellow firefighters, and your profession.

Don't your family deserve to be honored in their own right? Don't your fellow firefighters?

Honor them fully, and one at a time. Time for a second kilt.