Why does Athena reveal to Odysseus about the situation he will find at home?

Athena reveals to Odysseus the situation at home to prepare him for the challenges he will face upon his return to Ithaca. She wants him to be aware of the disarray caused by the suitors vying for his wife, Penelope, and the disrespect shown to his household. By providing this information, Athena enables Odysseus to devise a strategic plan to reclaim his home and restore order, ultimately highlighting her role as a protector and guide for him.