Actually you will need a little more than blackjack game to learn to play a casino game. I recommend what I call the Three-Step approach to learning a casino game at home. The three steps for learning to play casino games are: reading, watching and practicing.
Puritans had little success convincing Europeans to stop betting but they established strict statutes against blackjack game and other worldly distractions in their early American settlements beginning in 1638.
You might make casinos adjustments according to the cards you already hold, but that is not the same as counting cards.