Blackjack, also known as 21 seems very complicated to me since it has multiple players.
I played once upon a time. It's more straightforward than you might think....really it's about you and the dealer. You *want* the other players to know what they're doing, but you don't need to interact!
Oh I was intimidated because I know it can be played with one or more decks.
THAT is true! I forget how many decks "the shoe" has -- that's what the dealer is dealing cards from -- so it does add a level of chance. That's why "card counting" is a technique players try to use.
I know that players are allowed to draw cards to kind of play better but I still find it a bit confusing.