It is a challenge to sit down and write, and to do it consistently. It is a challenge to put your ideas out there.
Showing up at regular intervals and coming up with interesting ideas on a regular basis is hard. Blogging helps you cultivate that discipline.
Blogging pushes you to be resourceful. Your imagination gets sharper.
Blogging requires time, commitment, and discipline. Being committed to sit down and write daily or weekly is an important skill.
Some of the best things in life result from self-discipline and delayed gratification. Becoming a better writer is one of those things.