Right, because young girls were taking so many other vows several thousand years ago.
Show us a reference of Hebrew girls taking a vow of virginity.
Assuming such happened is counter-intuitive. It defies human nature.
A vow of virginity was a pagan act of a woman bonding herself to an idol, and none of them ever remained virgin; they were temple prostitutes.
you seem to be preoccupied with young girls making vows of virginity. Well it wasn’t done in Jewish culture, one reason was that each wanted to give birth to the Messiah. Also culturally, women could not usually survive without a husband or father. And as Jews put a high value on men having children, a widow often married her husband’s brother.