One reaction I was concerned about however, was both of my children
I understand that too, I have teenagers, they are especially sensitive about these things.
My eldest son loves kilts himself, my 14 yo daughter actually let me take her to the movies while kilted, that was a big thing for her and I told her I was proud of her.(even tho she kinda walked a couple of steps behind me, made me feel like the Queen)

All kids are different and will reacte differently, what you are doing already is the best, just getting them used to seeing you in a kilt and explaining to them why you like the kilt.