One possible reason could be to escape the pressure of his family's expectations. The Malfoy family has a long - standing reputation in the wizarding world, and Draco might feel suffocated by the need to uphold it. Another reason could be fear. If he's gotten involved in something dangerous, like with the Death Eaters, he might run away to avoid the consequences.
Maybe he runs away because of a broken heart. In fanfiction, there could be a love interest that didn't work out. For example, if he had feelings for a Muggle - born witch and his family found out, he would be in a difficult situation. Running away might seem like the only option to him to be with the person he loves or to escape the family's wrath.
He could go to the Forbidden Forest. It's a large and mysterious place where he could hide. There are many hiding spots and magical creatures that could either protect him or at least keep his presence a secret.
She might run away because of a conflict with her friends or team members. Maybe there was a misunderstanding or a disagreement that she couldn't resolve at that moment, and running away seemed like the best way to avoid further confrontation.
Another reason could be for the sake of protecting the village. Maybe he discovers some sort of threat that he believes he can only face by leaving Konoha. He doesn't want the village to be in danger because of him, so he runs away to draw the danger away from Konoha.
It could also be due to a sense of confusion. Naruto suddenly finds himself in this unexpected situation. He doesn't know how to deal with it and feels that running away is the easiest way at the moment to escape from all the chaos and figure things out on his own.
One possible reason could be that he feels misunderstood. In the village, he has always faced discrimination because of the Nine - Tails inside him. People often look at him with fear and suspicion. So, he might run away to find a place where he can be accepted for who he is.
One possible reason could be that Peter might feel like he's a burden to Tony. Maybe he made a big mistake and is afraid of Tony's reaction. For example, if he accidentally endangered the lives of others during a mission while under Tony's supervision.
One possible reason could be that he feels misunderstood. In the Naruto series, Naruto often faced isolation and judgment from the villagers. If this extended to his family in the fanfiction, he might run away to find a place where he is accepted. Maybe he discovers some dark secrets about his family that make him feel unsafe or betrayed.
One reason could be fear. Snape has always been rather intimidating to Harry. Snape's cold demeanor and his past interactions with Harry's father might make Harry feel constantly on edge around him. So, running away could be an instinctual response to this fear.
Maybe he discovers some dark secrets within his own superhero community or organization. Fearing for his safety and not knowing who to trust, he decides to run away and figure things out alone. For example, if he finds out that some of his allies are involved in unethical experiments related to their powers, he might feel the need to escape and expose the truth from a distance.
Perhaps he is running away from danger in Konoha. There could be a threat that he believes he can't face directly in the village, and he thinks Whirlpool might offer some sort of sanctuary or a way to become stronger in relative safety.