But if you came from a family that was extremely powerful or had unique abilities,chances are you would have a head start compared to others.
For example look at someone who is born into wealth,they never have to work for anything compared to everyone else and can get anything they want.Destiny has worked well in Naruto's favor because he was predetermined to save the world at birth.That's the entire reason Minato sealed one half of Kurama into him.
yea thats part of life.. not destiny. We aren't equals.... I might have a better body, you might have a better brain. Who is better? me or you?
The most perfect guy in the world might have a disease.. are we not better than him?
No Naruto's dad hoped/ believed he would be the one. Predestined means no choice, and would have had happened if the person did other things also. So really?
No one is saying hard work doesn't matter. Remeber what Gai said? "Hard work is worthless for those who don't believe in themselves."
But you know what? Hard work means less if you don't already possess the capacity for greatness. The rest of the K11 could train their entire lives and never equal Naruto's power, because they don't have his incredible chakra reserves. Sakura has trained incredibly hard, and has the guidance/tutelage of a Hokage, but she lags behind Naruto and Sasuke because she lacks their natural advantages.
Capacity of greatness? no such thing.
The rest of the K11 can train the rest of their lives and won't be able to reach such a level, because something didn't happen to them. And actually through some means they can aquire power on the level of Naruto... enhance their body like Kabuto did his.. and further more.
Sakura lags behind Naruto and Sasuke? In what bro? She kills them in Medical ninjutsu.. Shes the best support in the manga.. She can make poisons that Naruto and Sasuke can only dream of.. She is more intelligent.. She is naturally a genjutsu type which Naruto and Sasuke aren't.. She was talented with great chakra control since she was a child.. Naruto and Sasuke don't have that privilege..
Sasuke and NAruto can train all they want. But they'll never reach Lee's level in taijutsu and etc. That natural ability to go into gates at such a young age.. Naruto and Sasuke don't have it..
Neji's advancement and proficiency with his eyes.. Sasuke wasn't even on his level in KKG mastery until shippuden started...
We are all born unequal.. as I said before, "Destiny" or "pre-destined" is bunch of crap made by the "weak" people or actually the "lazy" people to give an excuse for why they aren't on the level someone else in that field.
Its how life is.