I don't think Billawal is independent in his decisions. He was used by Zardari to grab power after BBs death. If you ask him, he is not interested at all to become a leader. he wants to focus on his study. Zardari made his chairman PPP to gain peoples sympathies. Zardari, who said he was co chairperson is the real chairman PPP. I am sure more than 90% PPP members hate AZ but if they oust him now, NS will grab the opportunity and they dont want that. AZ is necessity of time and Bilawal is necessity for AZ to control PPP. Zardari will definitely be ousted of PPP after he completes his tenure and PPP loses elections and he knows that. Thats why he doesn't give a damn what people think about him.