The insurance bet is optional and it is only available when the dealer’s upcard is an ace. Insurance provides some protection when the dealer shows an ace - the strongest card in blackjack.
WHY DOES OUR CASINO OFFER INSURANCE BETS?.HOW DOES INSURANCE AFFECT THE HOUSE EDGE?.SIMPLE MATH OF AN INSURANCE BET IN BLACKJACK.WHEN SHOULD YOU TAKE INSURANCE IN BLACKJACK?.