I see this as Being Way More than a Novelty... It Could have Real-world Applications.
I am reminded of the story of the Bumble Bee who, by the law of physics should not be able to fly, who flies simply based on the fact that nobody ever told her she couldn't!
Imagine how many might benefit from the simple "muscle memory" a device like this could create!
I can't feature a parent in the world who would not spare the time and effort to give their child a shot at having free mobility the rest of us take for granted!!
Go Dad!!