25 years back when I went for treatment for flat foot in india, doctor said about insoles but being available in developed countries . My dad worked with a shoe

25 years back when I went for treatment for flat foot in india, doctor said about insoles but being available in developed countries . My dad worked with a shoesmith to build one, the material and fit were a problem, stopped using it within weeks. Sure 3d printing and 3d scanning would help build a right fitting devices and improve quality of life