Yeah, it would be easy to go and jump right into playin the game, but I look at playing a new game like eating a sundae. To really enjoy it, you have to take it little by little. if you just dive in, the enjoyment will be over before you know it and you will be left with an empty bowl, scraping off what little remains with your spoon.
To further explain, having tasted the Civilization flavor before, I know that I'm going to like it. First I'm going to sample a little bit by reading (or at least skimming through the manuel). Next, playing the tutorial would be skimming around the edges of the bowl, gathering any overlaps that may be ready to fall off to the table or floor. Playing through a quick game (savoring each bite one at a time) is pretty much where I start digging through the whipped cream, fudge, jimmies, and or any other toppings that might be their. Finally, I start on the ice cream (in this case, it will be the epic game), where I will again savor each bite one at a time. By then, I should have my fill, until my appetite comes back to me and I'm ready for a second dish.