Why did johnny not dye his hair in the church in the outsiders?

In "The Outsiders," Johnny did not dye his hair in the church because he felt a strong connection to his appearance as a Greaser. His hair was a symbol of his identity and belonging to the group, and he didn't want to change that, especially during a time when he was trying to figure out his place in the world. Additionally, he was in a vulnerable situation, hiding out after the incident with Bob, and wanted to maintain a sense of self amid the turmoil.