Welcome to Derry Could Have Unraveled a Longstanding Pennywise Enigma
Pennywise's impact on the children of Welcome to Derry shapes them long into adulthood, transforming them into the very adults who keep the community's cycle of hatred alive. The creature finds easy targets on kids from broken homes — youngsters who frequently mature to replicate the identical behaviors as their guardians. But, the Hanlon household distinguishes itself as one of the few family unit that never splinters, which could clarify why Mike, even after electing to remain in Derry, persists as the sole member who doesn't completely succumb under Pennywise's sway.
The Hanlon Family's Distinctive Resistance
In the fourth installment of the series, Leroy finally becomes increasingly conscious of the paranormal entities enveloping the community, especially when the entity begins tormenting his son, Will, during their fishing trip. The Hanlon family comprises some of the few grown-ups who are cognizant that something is amiss with the municipality, especially the father, who was shown to be sensitive to psychic abilities when he was able to detect a fellow psychic's use of it in episode 3. Later, he spots one of the clown's trademark inflated orbs outside his residence. The ability, coupled with his inability to experience terror, combined with the base of his household, may be why he's capable of perceiving the entity's manifestations. But what if that psychic sensitivity is generational, and one of the reasons Mike is among the few adults in Derry who didn't lose themselves to the town's malevolence?
The boy is a member of the group of children at his educational institution being terrorized by the clown. All his school friends come from broken homes, with parents who don't believe they're being haunted. The reason he is being pursued is due to the viciousness of the town, combined with his likely receptiveness to psychic abilities, which makes him susceptible. This family are fundamentally strangers in Derry during the early sixties, which lends itself towards the household feeling anomalies exist about the locality from the onset. They also have a good foundation that isn't fractured, in contrast to the residents who come from the town, with bonds that have decayed internally.
Historical Context
Based on the original book, we know the young Will Hanlon will end up at the infamous nightclub, where the psychic will save him from a fire that the local KKK members of Derry will cause. In the recent movie, we see that Will has a son named Mike and that Will eventually perishes in a configration, with his father outliving his own son and taking his grandson in. The official story in the motion picture is that the parents were on substances, but now that we see him in the series, that's hard to believe. Maybe the timid youth, once he grew up, leaned into drink to free himself of the hauntings, or perhaps the rotten environment affected him first, with the KKK ultimately completing the task it began years ago. Whether through the terror of the entity or through the cruelty of the town, seeded by It, It in the end achieves the final victory on Will.
Leroy's Transformation
These occurrences would explain how Leroy transforms so radically from what we witness in It: Chapter 1 and the prequel. In his older age, Leroy seems bitter and much stricter with his parenting. Because he survived his own son, it's understandable to observe such a profound shift. Nonetheless, his statements hold greater significance now that we know he's seen Pennywise's hauntings and the impacts they had on his son. In the initial sequence of the movie, we see the boy hesitate to use a stunning device on a animal at the family property. Leroy chastises him for delaying and provides an metaphor that results in a survival-of-the-fittest scenario.
“You have two options you can be in this world. You can be out here like us, or you can be in there,” Leroy says as he gestures to the creature. “You dawdle hemming and hawing, and someone is going to decide for you. Except you won't know it until you experience that bolt between your eyes.”
Looking back, this could represent a piece of prediction, a lesson he regrets not imparting to his own child. Maybe he wishes he had acted differently in his past, but for certain factors, he was unable to avoid the sickening attraction of Derry.