I really like this article of A VC because it provides a basis of why I'm setting aside time to write every day. I'm writing every day to help me collect and organize my thoughts better so that I can better convey my message to others.
Writing forces you to work out your views and articulate them clearly and concisely.
What's amazing to me is such an emphasis on STEM (Science, Technology, Engineering, Math) education, which is great; however, studying this does not teach you what humanity is and how to provide a moral compass for the new technologies we create. How would we answer the importance of artificial intelligence to society? What laws would we have for internet privacy? Writing, being able to convey your thoughts enable you to empathize with others. This is what we lose when we are solely focused on technical achievement.