Are you posting in good faith? On the assumption that you are, China locked down at least 760 million people. Italy has locked down 60 million people. The economic consequences are going to be staggering. The virus would be almost impossible to eliminate without a vaccine, so once quarantine measures are lifted it would continue to spread quickly again.
It's pretty obvious if you separated people and kept them in their homes the virus would stop spreading. So what? The world cannot just stop forever. Life will go on, and so will this virus. It is with us now.
Unfortunately this is going to change your life and people you know are going to get very sick and die. Please tell the older people in your life to be very careful and DO NOT downplay the risks to them.