Why didn't the dealer check their second card when they received 10 as a first one? (Blackjack)

Please note, the game rules may differ depending on the casino and there may also be a lot of differences and variations. In our app, the classic Blackjack rules are used, when the dealer offers you an insurance option only if they received an Ace as their first card. You can learn more about the current game rules in the "Support" section, "Help center" tab.