In ages past we had game instructions to study when installing a game. Now we can learn about game mechanics online if we so wish, or do a tutorial (curses upon those devs that make them mandatory or part of a campaign).
Or we can do it the fun way - learn while playing the game and check any aspects we don't fully understand online.
This is not a grand strategy game, it doesn't need an advanced tutorial (and even those don't really have it, looking at you Crusader Kings <.<).
