Final Fantasy X for example..

its like if you were asking why you cant already compete against "Sin" in the beginning of the game?
Wouldn't be also really weird doesnt it?
all characters evolve during the story.. yuna as an unexperienced summoner or rikku as a foolish kid.

and why you get the impression nobody cares about you in personal? they ask you do complete missions for them, you receive an own companion to your side. but still, you are not that strong and experienced .