Why does cherry say that things are rough all over again?

Cherry says that "things are rough all over" to highlight the shared struggles and challenges faced by people from different backgrounds, including both the Greasers and the Socs. This statement emphasizes that despite the apparent differences in their social standings, everyone experiences hardships and emotional pain. It serves as a reminder that understanding and empathy are crucial in bridging the divide between their two worlds. Ultimately, Cherry's comment reflects a desire for connection and recognition of common humanity amidst societal conflicts.