Actor Amitabh Bachchan said he approaches his grandchildren and son Abhishek when he runs into technical problems with gadgets. "These people are very knowledgeable...I want to learn from them, ask them, 'How do you do it? Why can I not do it?' They just say, 'You are turning old now, you should stay home,'" he said on 'Kaun Banega Crorepati'.