Srila Vyasadeva

Srimad Bhagavatam 1.4.25

strī-śūdra-dvijabandhūnāṁ
trayī na śruti-gocarā

karma-śreyasi mūḍhānāṁ
śreya evaṁ bhaved iha
iti bhāratam ākhyānaṁ
kṛpayā muninā kṛtam

TRANSLATION
Out of compassion, the great sage thought it wise that this would enable men to achieve the ultimate goal of life. Thus he compiled the great historical narration called the Mahābhārata for women, laborers and friends of the twice-born.

PURPORT
The dvija-bandhus are classified with the śūdras and the woman class, who are by nature less intelligent. The śūdras and the woman class do not have to undergo any saṁskāra save and except the ceremony of marriage….