Rahu Ketu denote our evolutionary path in this lifetime. They are the lessons we are meant to learn in order to become better and more capable humans.
Rahu shows our weakness that life will show us on the screen of our life.
So I think there can be no escape from them, only thing is either people will try to accept it and learn it and move ahead for greater lessons of life or dodge it and try to run away from it only to find the same lessons chasing them everywhere and even for many lifetimes. So people can prolong the duration of learning what they must by trying to hold onto their Ketu. But when Ketu fails them miserably and they are all broken, then they have no choice except rahu.