Why does Ponyboy say about the Greasers, "We deserve a lot of our trouble"?

I believe he says this because they are, after all, somewhat of criminals.

Many of the kids are both good and bad, but there is not one of the Greasers who is not willing to participate in illegal acts for no really good reason.  The Greasers are all willing to go fight with other gangs, to beat up Socs who come in their territory, stuff like that.

So, they tend to go out looking for trouble, stealing things, doing things like that.  So even though they have (except for Dally, perhaps) good sides, they also do a lot of stuff that makes them deserve trouble.