A comparation of "given powerups freely".
So , this will be a comparation from other animes , which will be bleach and one piece.
So , lets start in naruto , the only guys that i saw that were given powerups freely were the uchihas. because they already had the sharingan since they were born.
Gaara and Naruto didn't choosed to be jinchuriki , their "parents" put them in him (they / them , wtv)
First Sasuke , after Sasuke defeated Itachi he got every free powerup , like it was nothing , he screams like a girl and BAM , HERE YOU GO , FREE POWERUP LOL.
(no , i'm not gonna talk about the SO6P).
Now , the only thing that i saw in the other series that was a free power-up was... Ichigo in the fullbring arc after he lost his fullbrings powers getting a power-up , because of Kuchiki Rukia + Isshin Kurosaki and Kisuke Urahara.
As well as naruto and gaara , Ichigo didn't got is power-up for free HE WAS BORN WITH IT WITHOUT FREAKING ASKING LOL. same for his mom (i don't remember her name x) ). But , nonetheless , in the very first episode , rather he got his powers of shinigami or not... he had a CHANCE , JUST A CHANCE OF DYING... if he ended up not getting the shinigami powers (but he got obviously) and this is why this isn't a free power-up , furthermore , Ichigo , Orihime , Ishida , Chad , Rukia + the Gotei 13 HAD TO TRAIN TO GET THEIR POWER-UPS , NOT DRIVE BY THEIR EMOTIONS , THEY HAD TO TRAIN!!! (you might say that this is a bashing thread , but it isn't)
Now , about One Piece , you can say from the start that the devil fruit that Luffy has is a power-up , you can say that , but then again... he didn't knew that , that thing that he was eating WAS A DEVIL FRUIT . But oh well... like all the main characters he trained to get their powers , 2nd gear , master his devil fruit , 3rd gear , Haki , etc. the same goes for his nakamas , they trained! hell if nami would get herself to drive by her emotions lol... that would be hilarious but at the same time boring.
Now , to explain why naruto isn't so popular , when it could be more popular than it is now . if you disagree it's fine . but if you try to bash other series without seeing the other series or understanding AT ALL the other series , then well... that's your own fault .