If I'm going to wear one of my kilts, then I'm getting dressed up for a reason. When I wear my kilt to school, I've got the hose up and tied down with garters. If I'm going to go hiking, it's a toss up depending on the terrain (lots of scrub and sage brush out here) but I prefer to wear the hose up (the hose tends to protect my shins from scrapes). When I'm fly fishing, then, that is another story in itself! It's all personal prefference and what feels right by you. Go for the look that feels right for the situation.
Nulty