Well, in my experience with a few blind friends, they don’t walk any differently than the rest of us, and that goes for those with dogs and those with canes. Maybe some people are better at it than others, but there’s gotta be a major learning curve here, especially if you lose your sight after learning to walk. Add on the effects of age and drugs and whatnot, and there you have it.
I certainly wasn’t saying he lacked confidence in general. Just with moving around in strange environments.