Why did Jesus entrust Mary to John instead of to His brothers?

When Jesus was on the Cross, both John the apostle and Mary the mother of Jesus stood nearby. In John 19:26–27 we read, “When Jesus saw his mother there, and the disciple whom he loved standing nearby, he said to her, ‘Woman, here is your son,’ and to the disciple, ‘Here is your mother.’ From that time on, this disciple took her into his home.” The clear understanding of the passage is that Jesus commanded John to care for Mary after His death.

Jesus’ brothers were not believers

Mary was most