Try to add the following PHP code snippet to the child theme functions.php file to do this
/**
*Reduce the strength requirement on the woocommerce password.
*
* Strength Settings
* 3 = Strong (default)
* 2 = Medium
* 1 = Weak
* 0 = Very Weak / Anything
*/
function woodmart_reduce_woocommerce_min_strength_requirement( $strength ) {
return 2;
}
add_filter( 'woocommerce_min_password_strength', 'woodmart_reduce_woocommerce_min_strength_requirement' );
Kind Regards
XTemos Studio