Skill is a subjective term however you do not need to be particularly skilled to be able to play Smash Brothers. You do not need to be particularly skilled to play Mario Kart either. You can be a good player or a poor player, but regardless of your individual skill you can play these games. Most gamers do not use the highest difficulty in a game as a barometer. Specifically because a player has the option to play it on easy mode. Easy mode exists for challenged or casual players. So they can play through a game without being very good.
Now take a game like Mario, Zelda, or Metroid. Your required to have a degree of skill to play and complete these games. They contain non linear objectives, dynamic puzzle elements, split second timing, and a great degree of hand eye coordination. They require a certain amount of dedicated play. You cannot just pick these games up and play for fifteen minutes.
I hate to say this but Smash Brothers and all games in the genre really are casual by their very nature. That is not going to change. That does not mean it cannot be challenging for you, but anyone can pick up and play this game. Simply due to the fact that it is not hardcore. Try a experiment get a non gamer to play Zelda, and then have them play Smash Brothers.
I guarantee that Zelda will frustrate them, and they will do very poorly. They will not want to play this game. Trust me I have done it after the fiftieth question I start to get frustrated. Stick in Smash Brothers, and watch as they start to get a handle on things. Sure they do not know all the nuances, but they can get into it they can actually play the game. They might actually win a few matches against the system. Thats the thing about Smash Brothers sometimes a player can actually win by dumb luck.
That is why Smash Brothers is a casual game.







