I lived without Internet for a long time during my childhood. I didn't have any problems than. So, yes, I can live without Internet.
But it will be a lot difficult for the first few months. After which I will get accustomed to it and no longer regret it. Internet was a revolution that allowed the general public to access information for anywhere.
If Internet is shut, the public will no longer be able to do that. So, a lot of businesses that depend on IT will turn to dust.
But that won't make people die. They will live on but that would be a little harder than now.
Even large asteroids couldn't exterminate us from living in earth. Mere lack of Internet won't have that much impact. People will go back to the analogue systems.
