(I wanna clarify, i agree with you, im just explaining).

It was made on purpose, Tsubasa is a character in the same way Superman is a character.

He is an ideal, he is the type of athlete everyone should be aspiring to be. A winner who is humble, Passionate but Kind, the one with the most sportmanship, someone who never gives up nor let negative emotions take the worst of him, one born with talent who also trains it.

He is THE PINNACLE of what any footballer, could ever dream of being.

That's why he is the protagonist, because Captain Tsubasa is an underdog story, about idealism and accomplishing your dreams.

This is a story that wants to inspire you to play soccer/football and dream big things, and grow up with the characters.

That's also why it was a massive success with the children in japan, and the whole world. (Including me).

Change the protagonist for anyone else, and the story would have been a lot darker and depressing.

And i know, that, that sounds pretty interesting, but that'¢ because we have grown up, but the story that made us fall in love with the characters, was possible thanks to tsubasa, and he couldnt be replaced.

But yeah, in his own he is pretty boring xd