Popular but losing blackjack strategies include using gimmicks like the no busy system instead of following a basic strategy blackjack chart.
Blackjack players can insure the dealer showing the hand of 21, but it is not considered safe.
Most blackjack rule variations allow players to take insurance, but usually it isn’t in the players advantage.
Blackjack insurance seems to favor the player, but does it actually, and should players ever use it?