Because this IS a game where a newbie can sit and play and not have their play affect anyone else at the table.
Now, I'm not saying there is a whole lot of strategy in playing 3 card, but I have sat at enough tables on the cruise ships to hear many times - 'Oh I don't know how to play that.' So I figured I would start a thread and see where it goes. I saw one for Craps, BlackJack and Roulette but I don't remember seeing a thread on 3 Card Poker.