Why aren't Cherry and Marcia scared of Johnny and Ponyboy even though like Dally Winston they are Greasers?

Cherry and Marcia aren't scared of Johnny and Ponyboy because they recognize that not all Greasers are the same, and they see the boys as individuals rather than stereotypes. Johnny and Ponyboy are gentle and sensitive, contrasting with the more aggressive Dally. Their interactions reveal that Cherry and Marcia can appreciate their humanity and character, which transcends the social divide between their groups. This understanding allows them to connect and feel safe despite the boys' Greaser affiliation.