The way that the pledge is reported sounds like she only needs to take it to get a local license.

Even kings need to keep the people they rule over happy or else they risk one day he people rising up and toppling them. Egypt, Syria, Libya the people were not happy with the dictators and they rose up and toppled them. Syria has slowed down the arab winter as people worry if they get rid of their rulers might they end up but it could quite easily happen in Saudi Arabia of the royals are to oppressive. In an age of mass communication seeing that other people have done it motivates them to do the same.