There are like a few people that could create a robot like this.
This people may think different, nowadays we are even more individuals.

So in that case if you want a good robot, the devil lasts in the detail.
Of course we wouldn't argue over general requirements(or parameters).
But if you create something, you have a target audience, that you create it for.

So if a product has international popularity, you will have your customers that fit in that target audience and supports you, but also people that are impaired or even suffer because of your product.