I don't currently have an SO, and haven't since I started kilting, so I can't really say it's ever been an issue.

FM (and Wife), I've worn my kilt quite often around Louisville (in particular when piping for the last several annual St Patrick's Day parades - the Saturday before the Day) and have yet to be accosted by anyone - male or female - even then. The most I've gotten is a smile and 'Nice kilt!'. No one (to my knowledge or recollection) has ever tried to kilt-check me in the 9 years I've been kilting.

Granted, I'm seldom kilting alone (usually at least one other band member around), and I rarely venture out in my personal kilt. Say, didn't you mention in my happy thread that we in Louisville are overdue for a kilt night?