1.When answering this question, you can discuss the benefits and challenges from both social and practical perspectives. 2.For benefits, you can mention the emotional support, shared responsibilities, and financial savings that come from multiple generations living together. It can also provide a sense of security and help in child-rearing. 3.For challenges, you can discuss potential conflicts due to differences in values, lifestyles, and privacy concerns. The need for compromise and understanding among different generations can also be a challenge.