Get 16; Dealer has 20:
Get 17; Dealer has 20:
Fight for a 19; Dealer has 20:
Get a Blackjack; Dealer has 20:
Blackjack game gives the dealer 20 way too often compared to how infrequently the player gets 20 with two cards in comparison.
It's either programmed this way for the dealer to win more frequently intentionally or the Blackjack programming logic should be modified and balanced.