For this response we'll pretend that I actually had the balls to ask out a girl to whom I was attracted. After all, it wouldn't be much fun to give a painfully honest "No, I don't ask
any girls out."
If I was interested enough to ask a girl out it wouldn't matter if she had leg braces. At least that's a perceived drawback that wouldn't be a deal breaker in and of itself. It's better than thinking she's normal only to discover later on that she has a problem with drugs, or goes into debt buying useless crap, etc. Plus, I wouldn't worry that she'd want me to take her out dancing, which I'm terrible at. Nor would I have to worry about her wanting me to go out jogging, rock climbing, or a slew of other more rugged and manly activities. We could both be happy just sitting around and talking. Or floating around in a pool.
And if I didn't know she had leg braces and found out later (maybe we first met online) I'd be a little disappointed. But only because she obviously thought that I'd ditch her if I knew ahead of time. I'd still think she was cute, and I'd probably become a bit more protective of her.
Of course, if she had computerized hydraulic leg braces I'd probably be a bit jealous....
So I'd ask you out whether you had leg braces or not. Or maybe that should say that I wouldn't ask you out whether you had leg braces or not. A cute girl is a cute girl.