Welcome from Lancaster County PA!
If I may make a suggestion, for your first kilt, go to a Scottish festival and find a kilt that is not too expensive (but one that still looks good) and change into it there. That way for your first kilted experience you will be among firends. Once you wear it you will feel your confidence swell.
I have never had a bad experience wearing a kilt, no matter where. I have had some REALLY good experiences though.