Why do writers use outlines

They use them to help organize their thoughts and ideas (like a road map or a recipe) before starting to write.

Explanation:

b. brooks wrote about the same type of neighborhood in which she grew up.

the anwser is went creeping down the river again, across the wide lonely marshes to the sea.

i longed to go with them out into the world to seek my fortune in foreign lands—africa, india, china and peru!

and, dreaming of the lands i had never seen, i'd sit on there, watching till they were out of sight.