We all seem to forget that our SO need the time to adjust to our new habits. Those of us here are discussing kilts all the time and learning new things that we like. Our minds are made up and moving forward long before we have likely even told a spouse. They aren't at the same pace we are and just need the tiem to get used to it. Just like we do with their new haircut

Break her in slowly with Ceilidhs, or highland games, etc, etc. My wife was in the "it's a formal thing" attitude as well, but she came around and has always put up the front that she was supportive (if she isn't, she hasn't voiced it).