If Naruto never got to hear Iruka in fanfiction, it would be a big loss for Naruto. Iruka was the first person to truly see Naruto for who he was. He gave Naruto the headband, which was a symbol of acceptance. Without that, Naruto may have felt even more isolated. His relationships with others, like Sasuke and Sakura, could also be affected. Since Iruka was the one who made Naruto feel like he belonged, not having his words or presence in Naruto's mind in the fanfiction could make Naruto more reckless and desperate in his actions.
If Naruto didn't get to hear Iruka in fanfiction, the emotional core of Naruto's character would be altered. Iruka was the one who taught Naruto the importance of hard work and believing in oneself. Without those lessons, Naruto might not have been able to inspire others as he did in the original story. His relationships with his teammates would be strained because he wouldn't have the same positive attitude. Also, the village might not have come to accept him as readily, as Iruka played a key role in Naruto's integration into Konoha society.
One scenario could be when some villagers start to be mean to Naruto. Iruka steps in and scolds them, telling them Naruto is just a kid. Another could be during a training exercise that gets a bit too dangerous for Naruto, and Iruka quickly intervenes.
It also improves Naruto's skills a great deal. He becomes better at combat and using his ninja techniques. For example, his Rasengan might be more powerful or more easily controllable after Iruka's training. Moreover, Naruto's confidence grows under Iruka's guidance. He no longer doubts himself as much and is more willing to take on challenges.
One common theme is the idea of family. Since Naruto lacks a traditional family, Iruka often becomes a father - like figure in fanfiction. So, the theme of family and the bond that develops between them is quite popular.
Physically, Iruka takes care of Naruto's symptoms. If Naruto has a cough, Iruka might make him herbal tea to soothe his throat. If Naruto has a fever, he uses cold compresses to bring the temperature down. He monitors Naruto's condition closely and adjusts his care accordingly, making sure Naruto is on the road to recovery as quickly as possible.
At first, it might start with Iruka showing simple kindness to Naruto, like making sure he has enough to eat. As time goes on, Naruto starts to see Iruka as a father figure. He looks up to Iruka and wants to make him proud.
Well, in the fanfiction, Iruka may be protective by constantly checking on Naruto's well - being. He could ensure Naruto has enough to eat, is getting proper training, and is not being bullied by other villagers. He might also be protective in the sense that he gives Naruto extra attention and guidance in his ninja training, more so than he would for other students.
Initially, Naruto might be a bit hesitant to fully embrace this new family situation. But Iruka's kindness and Anko's enthusiasm would gradually break down his walls. Iruka would continue to be Naruto's academic and moral guide, as he always has been. Anko would introduce Naruto to a more carefree and adventurous side of life. They would have family outings, training sessions together. As Naruto grows, he would start to understand the value of having them in his life, and they would be proud of his every achievement, forging a deep and loving bond.
Iruka influences Naruto's early development by being a positive role model. Naruto looks up to Iruka and wants to be like him. Iruka's kindness and belief in Naruto give Naruto the confidence to start believing in himself.