I had my knee scoped a couple weeks ago and for the first few days used my walker to get around. I had a follow-up with the surgeon a few days after the procedure and was sitting in his waiting room with my leg up on the walker. The town I'm in is right next to a military base so it's not unusual to see younger folks walking around with canes and the like, but I guess a walker was too confusing for some. A semi-elderly lady approached me and asked me to move my leg so she could give the walker to her husband (who was using an older, less well-kept walker).
I said, "Sorry, but this is mine."
"That's not yours! And you don't need it anyway!" and she reached to take it from me.
I (and my son) got our hands on it before she could. I offered to unwrap my knee and show her the incisions, and told her that I've had the walker for over five years. She harrumphed a couple of times and said I was too young to need a walker. I just looked at my knee and back at her. Everybody else in the waiting room was staring at her, and she eventually got the hint.