I’ve seen a number of babies wearing those feet braces.
it is a way to fix the turned in feet but honestly by fixing the turned in feet the hips end up causing you issues later in life. I actually think they would be better off breaking the bone or re-aligning the hips and feet from the hip joint down than fixing it the way they do but what do I know? I just know I had the connective bar and orthopedic shoes and my feet are straight now but my hips are bothering me now that I am in my 50’s and I have not led a hardscrabble life.