Oh HELL no! When my GF first started riding with me she made the mistake of dragging her boot across one of them when getting on and left a couple of small scratches. I politely asked her to be careful from then on and... she HAS been! I do take some responsibility for not explaining to her how to get on, though. I figured it was just common sense, but being a blond, I shoulda figured otherwise.
She knows how anal I am (OK, insert punch line here) about my stuff and she's been very good about being careful. The last thing she'd do is use the bags as footrests... No, I mean literally, if she used 'em as footrests, it would be the last thing she ever did!