Well, in a society like the ninja world, there are certain gender roles. Naruto as a girl would have to break through those barriers. He might not be allowed to participate in certain male - only missions or training sessions anymore. Socially, he might face issues like unwanted advances from other male characters. And on an emotional level, he would have to come to terms with his new appearance and how it changes his relationships with his friends, especially those who had a more platonic relationship with him when he was a boy.
One challenge could be acceptance. Naruto has always been known as a boy in the village, and suddenly becoming a girl might make some people distrust or be suspicious of him. Another challenge is physical. His fighting style might need to be adjusted as his body is now different. Also, he might face different social expectations that he's not used to.
Naruto would likely face challenges in how others perceive him. Some might underestimate him thinking he's now a weak girl. In terms of his ninja training, the equipment and techniques might not be as suitable for his new female form. He would also have to deal with the emotional turmoil of seeing himself as a girl and how it affects his self - identity. For example, he might question his own masculinity and how being a girl changes his place in the ninja world.