Learning to read comes at a cost

(Max Planck Institute for Psycholinguistics) Learning how to read may have some disadvantages for learning grammar. Children who cannot read yet often treat multiword phrases as wholes ('how-are-you'). After learning to read, children notice individual words more, as these are separated by spaces in written language ('how are you').

from EurekAlert! - Social and Behavioral Science https://ift.tt/2AO8a7f