May I offer some friendly and, hopefully sage advice to you? Well, I am going to! When you wear the kilt, you must be not only a man, but a gentleman. Being a gentleman requires that your reaction to perceptions of others be handled in a "gentle" manor. A) find ways to put people at ease through witticism. B) never take what people say personally as some people, (a remarkable number), are entirely ignorant of the meaning and importance of the kilt. Be gracious in your responses. C) be prepared, sometimes to give in, especially in the work environment, to the fact that the kilt is not always appropriate for all situations. Sometimes, we must defer to the fact that there are places in which, a kilt, as perfect a garment as it is, is not going to work.
I work as a Manager in a manufacturing environment. Everyone who knows, including all of my employees, that I wear a kilt. They have all seen me dressed this way many times as I dress sometimes to go to Scottish Events and am involved with the Scottish Society.(iescots.com). I go to company picnics, Christmas parties and all other company events in a kilt. In these contexts, I get very good feedback from them all.
When I am at work during the normal day, however, I would not think of wearing a kilt because, A) it is inappropriate to the environment. B) it is a distraction from my duties. C). In a work environment such as mine, it is a safety issue.
I wear a kilt almost everywhere I go, even some places no one else would. In the workplace though, I have to have respect for my position, the position of the employees, the position of upper management, and the position of CAL OSHA.
As much as I hate to say it, there are some environments in which kilt wearing needs to be carefully considered. I think you will find, from most native Scots, that when they go to work in the coal mine, the car manufacturer, the Psychological or Medical institution, they do not wear the kilt because it is inappropriate to the context.
By no means do I wish to discourage you from feeling free to dress as you please, and, at least in California, you may actually have a legal case in your defense, consider this:
if a Bavarian counselor were to wear his lederhosen to a therapy session, well, you can probably see what is going on here.
In the work environment, especially in your field, it is important to shed your own individuality in favour of the needs of your clients. It is the time to put their needs above your traditions. Wear your kilt proudly in environments in which it is conducive to good will. When at work, if your work is such, make sure that your professionalism takes precedence over your style. This will serve your clients well and will allow them to understand when you tell them about your kilt wearing. It will allow them to be at ease when you tell them you wear the kilt.
I know that many people on this forum may disagree, but this is offered with the utmost respect from someone who is proud to wear the kilt every day.

Best Regards to you,
Aaron