1. Invisible censorship: Naruto uses invisible censorship to censor attractive fan service scenes, which can be frustrating for viewers.
2. Violent fights: The excessive violence in Naruto's fights is inappropriate for some audiences, considering it is a hot-blooded anime centered around battles and wars.
3. Disciple killing the master: Unlike the real-life emphasis on respecting teachers, Naruto depicts many instances where teachers are killed by their own disciples, sending a wrong message.
4. Bloodline over hard work: Naruto gives too much importance to bloodline, which conflicts with the story's initial theme of an underdog rising to power. This dominant focus on bloodlines is not suitable for children.
5. Bizarre ninjutsu: Naruto features numerous bizarre and sometimes inappropriate ninjutsu techniques, such as Naruto's self-created transformation jutsu and Kakashi's leaf body technique secrets.