"Bilawal is receiving training in London. I believe that his thinking needs to mature and he needs to grow up. Once that happens, he will enter politics again," said Zardari.Further, the former president said PPP would send delegations to different Muslim countries to reach a consensus to resolve the ongoing conflict in Yemen.While addressing a press conference at Bilawal House in Karachi, the former president said irrespective of the crises being an issue of a Muslim state, the human tragedy could not be ignored.“All countries, borders are for people, and of what use will they be if people are not there any more,” he said.Zardari said that about two million Pakistanis lived in Saudi Arabia whereas over one million resided in GCC countries and hence, the situation in Middle East could not be ignored.He said the government had a bigger role to play to resolve the Yemen conflict, and called on it to hold an All Parties Conference, inviting heads of all parties to discuss the situation.The PPP chairman added that his party could even suggest the Pakistan Muslim League-government to hold a conference of all heads of Islamic countries.Meanwhile, Zardari said that the PPP had decided to remind President Mamnoon Hussain in a letter to reopen the Zulfiqar Ali Bhutto murder case.“The reference was accepted. We want the judges to accept and acknowledge that injustice was done with Bhutto, and they should apologise for it.”