I, like Phil, have a load of kilts and very few are of the same length. Casuals, Formals, Traditionals, Tartans, Solids, etc... all have a certain look that works for me.

Do I prefer to have mine just below the knee cap? Yup. Why? Because I move around A LOT, and the little extra weight with the heavy pleats, and the extra fabric length helps me to assure that I don't get arrested.

Am I concerned about the kilt length of others? Not really, as long as the Britney Spears look is not in a pipe band.

My ONLY concerns are with kilt type designations for the buyers... and that's more for knowing what you're getting when you spend your hard-earned money on a kilt. 8)