Flat foot question

Hi, I am flat footed. I have read that for flat footed people, their feet tend to roll inwards. This doesn't seem to be the case for me. Also, in terms of the way my shoes wear, the outer portions wear the fastest, so if I'm wearing a pair of worn in shoes, my feet roll outwards, and I hate that feeling. Is the way my shoes wear related to being flat footed, or might it be related to the shape of my legs overall? Is there anyway that I can work on correcting this so that my shoes wear evenly, and ultimately my stance, starting with my legs, would always be "straight up", as opposed to that bowl-legged feeling? Speaking of which, I don't think I'm bowl-legged... Any responses would be much appreciated! Regards. -Chris Tweet