Huh. That sounded odd at first blush, but hitting on a 13 will bust on 9-10-J-Q-K, over a third of all cards, and while the hidden card could be an 8+ (nearly guaranteed to beat 13 with one additional card), it could also be another two and then the dealer’s in a tough spot I guess.

Still feels counterintuitive to stand on 13 to me but I am very bad at games.