In literature, a foil character is a type of character that has a minor role in the development of the story; however, this type of character supports the development or actions of the main character or protagonist which includes highlighting the positive qualities of the main character by displaying opposite traits. Considering this, Carlo can be classified as a foil, not only because his role in the story is minor (opposite to the one of the antagonist/protagonist) but also because Carlo display traits that highlight the ones of the main character.
The first problemthat occured was that ponyboy had just finished getting out of the theater when the socs beat him up and dally thought it was also the same peopel that beat johnny up too
I think it's because we are in a new era where we begin to fully understand the meaning of certain things that generations never really took the time out to learn about or were never given to chance to learn of at a certain age and we just try to make a difference by not letting detrimental parts of history repeat itself. That's how I see it hope it helps.
We know this by him taking this reply in ‘with a sort of humble patience’. This means that he has experienced this kind of teasing - or even bullying before and he is used to it.