keefklaar 2 points 2y ago
We get ideas like yours very often in the sub. Without wanting to be overly rude, it's a terrible idea that never works.
They can never come close to a cane.
They can't tell me the depth of a step, detect trip hazards like a raised paving stone, would be constantly buzzing in a classroom, hallway or on a busy sidewalk, etc
Also, a cane is a signal to other sighted people that the user is blind/vi