I have two kilts that I wear to weddings etc. one is Douglas, the other Mckenzie, the two local regiments, the Cameronians (Scottish Rifles) and the Royal Highland Fussiliers. Both are no longer with us, but the RHF lives on within the Royal Regiment of Scotland.
I do however also Have a pair of trews (McKenzie) and to be honest I do prefer to wear these on less formal occasions.
Mick