A man with a deliberately enchanted logic, you won't believe, but ALL people don't know how to paint at first. No one can sing from birth. And to read and write, this is the horror, until learning begins, nobody knows - and it's all there. And if there are no objects for general development, then no talents will be revealed. Absolutely all children do not know - they will find it unnecessary to learn and try.
You will still offer to walk and talk to teach only those children who have been walking and talking since birth. Something else is tormenting!