One thing I have noticed is that so many children have so much material to read however, they lack the initiative to do so.
Children should step forth and make use of all the unexplored skills they have in reading and writing. As you learn, remember that the brain has the capacity to store more information than any computer.
Children who read widely have insight on different topics and experiences that are happening around the world. The truth is that no single person can travel all corners of the world during their life time. It is through learning to read in different languages that they get to know how unique different cultures are around the world.
Also, the writing skill has to be developed through practice. The more you write, the better your handwriting gets. Besides writing goes hand in hand with reading.
Whatever knowledge you discover through reading you have to share it through writing so that it does not remain with you. This is how our great-great grand parents passed on the knowledge they knew from generation to generation.
If all children enjoyed learning, they would learn to read and write so fast. Their minds would broaden because they have learnt something new. If this happens then all children would become better writers in the future.