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$1 using the "message the admins" button at the bottom. They are great and will take care of you, not just for this sub but for everywhere else. Just send them a quick message explaining the situation and they will take that restriction away for you.
I don't want to discourage you from trying a cane though, and reading over I feel like I might have. It is very much a personal issue, but regardless of the issues I've had, I wouldn't give up using a cane for any of that. It has been so useful and it has saved me and continues to save me from tripping and being injured countless times every week. A memorable example of this was trying to find my way in the dark on a light rail platform that I don't travel often where I almost stepped off the platform with what has to be at least a four foot drop onto the rails. I have also taken extra measures to handle people with less than good intentions. I think the biggest thing about canes for me is that while I know my home area, there are things I can't account for. People leaving things on the sidewalk, or going new places where I am not aware of problems can be a huge problem. For that reason I will continue to use a cane because it really does increase my independence and my ability to travel wherever I went when I want. Just things to think about.