Why do most people need friends, boyfriend/girlfriend, drugs, or alcohol to have a good time?

Why are drugs and alcohol 'crutches' yet your books and library are not? Those things are as much a 'crutch' to you as drugs are to my neighbors. And unless it all YOUR research and books that YOU have written, I hardly call what you do SELF-sufficient. You're still relying on others, they just aren't there to interact directly.