Wade,
Your words ring true, I started wearing kilts last winter for the first time ever. Wife didn't like it. I have persisted and over time she is approaching and perhaps have reached acceptance. She admitted to me that I looked good in it. This is after wearing the kilt out with her on several different occasions and once around her family.

She is always worried that someone will disapprove and was very worried that her family would disapprove. However, in 95% of my encounters, it hasn't bothered anyone and does pull in several compliments. The other 5% have just been funny looks and sneers.

I think the reason my wife was worried is she thought something bigger was going on with me and didn't want to loose me to a new life. She has even questioned my sexuality, but after several months, it's clear to her I have not changed in that respect.

It's probably the same with any family member, if you have not shown an interest in kilts in the past, then something fundamental must have changed. There has to be a "reason".

Well, there is a "reason", we simply like them. Why do women like jeans?

My advice is to keep wearing your kilts and show that you are still "as normal as you were before". You may back-off a little bit around the family, but don't give it up. You want them to understand that your interest hasn't changed and kilts are here to stay. Once they determine that the only thing different about you is an interest in kilts, things will settle down, acceptance will form.