If Naruto wasn't a ninja…
If Naruto wasn't a ninja, he wouldn't be training toads! He would be training spaghetti how to talk, and how to slap his annoying neighbors.
If Sakura wasn't a ninja, she wouldn't be doing homework! She would be writing a 300 page book on why Saskue's hair's perfect as a brunette.
If Saskue wasn't a ninja, he wouldn't be training 24/7! His parents would be alive, so he now he isn't mumbling, "I'm an avenger." He'd actually be dating!
If Kakashi wasn't a ninja he wouldn't be reading a book! He would be writing a Japanese manga about 3 ninjas and their troubles that seem to never end. XD
If Itachi wasn't a ninja, he wouldn't be killing people! He would be the person to invent the song, "I'm a Barbie girl."
If Haku wasn't a ninja, he wouldn't be 100 Shinobi (Or dead.)! He would be a world famous rabbit breeder! Or maybe a doctor because of the senbon needles…
If Iruka wasn't a ninja, he wouldn't be eating ramen! He would be the proud owner of Iruka's Noodle Stand.
If Zabuza wasn't a ninja, he wouldn't have a guillotine sword! He would be a chef! A chef that if famous for using huge knives to cut his food…
If Rock Lee wasn't a ninja, he wouldn't have bushy eyebrows! He would be a barber, a specialist on the trimming of eyebrows.
If Ino wasn't a ninja, she wouldn't be a flower girl! She would be a spy for the FBI. I mean, somehow she gets a hold of information, right!
If Shino wasn't a ninja, he wouldn't be trained to specialize in bug ninjutsu! He would have a bug pet shop.
If Choji wasn't a ninja, he wouldn't need pills to get skinny! He would spend time making food, and competing against Zabuza.
If Shikamaru wasn't a ninja, he wouldn't be a stuck up genius! He would be the next Albert Einstein, but Japanese… Or where ever he lives…