Why did Taylor decide to drive Estevan and Esperanza to Oklahoma? Why was she at risk doing this?

There is a sanctuary there where the two will be safe, and Taylor decides she can get them to the sanctuary and search for Turtle's family at the same time.Mattie warns Taylor of the dangers of transporting illegal immigrants. Taylor tells her that there are more important things to consider: Esperanza and Estevan will get a whole lot worse than prison and a fine.