How many tried shaving baby's head and the hair growth after that is significantly thicker and richer? And how many have tried and proven that this is just a myth?

It is just a myth. I didn't shave both of my kids' hair when they were a baby and their hair turn out thick when grow older. The hair that a baby is born with may or may not be the hair that they grow up with. Shaving a baby’s head will not alter the texture of their ultimate hair nor will it cause their hair to grow faster or thicker. You may notice thicker and fuller hair after shaving but it's actually did not alter the hair growth. Here is the explanation from http://health.howstuffworks.com/skin-care/men/shaving-tips/does-shaving-make-hair-grow-back-thicker.htm Hair growth is determined below the surface of the skin, in the dermis, where a tiny tube called a hair follicle is located. Shaving only gives the appearance of thicker hair. That's because a person's hair naturally tapers at the end. When you shave, all you're doing is mowing down the thin shaft and exposing the thicker part of the hair near the skin. While the resulting stubble might seem thicker, it's not. It looks fuller because the hair is cut straight and short.