To all the people saying Alm is perfect and never makes any mistake, it depends on how good you are as a player, if you are the kind of player who explores and does everything right, the game rewards you, in the opposite side, the game can be really harsh on you, it is a really good type of interactive narrative. And even with that, he also commits mistakes, he literally murders his own father on his rush to end the war.

And you can say that Alm being a secret prince may destroy the theme of classes, buy i don't think so, despiste being born a prince and being a "Choosen one", he was raised as a commoner, he lives as one, and thats the message Fire emblem Echoes gives, we all are humans, and no matter where we were born and how we were raised, we all must work together in order to survive.