At the church, Pony and Johnny are unable to watch the sunset.What symbolic meaning might this have?

While walking home after the movie, Ponyboy admits to Cherry that he likes to watch sunsets. He says:

"It seemed funny to me that the sunset she saw from her patio and the one I saw from the back steps was the same one. Maybe the two different worlds we lived in weren't so different. We saw the same sunset."

After this realization, Ponyboy starts to think that maybe Greasers weren't such outsiders at all. They are separate but still equals. Not being able to see the sunset from the church can be symbolic of the boys being outcasts.