In blackjack, the decision to hit or stand depends on both your hand total and the dealer's upcard. In this scenario, the dealer's upcard is a 6, which is considered a weak card for the dealer because it's less likely to lead to a strong hand.
You have a total of 13, which is a relatively weak hand. Since the dealer's upcard is weak, there's a higher chance that they will bust (exceed 21). In such cases, it's often recommended to stand on a total of 13 or higher to avoid the risk of busting yourself.
Therefore, in this scenario, it's generally advisable to stand and hope that the dealer busts, rather than risking going over 21 by hitting and potentially busting yourself.