Of course it is insecurity and it is also fear. Many people are fearful of being alone. Being alone is WAY beyond their particular secure and comfort zone. There are people who are NOT HAPPY unless they are surrounded by people. They have to go out WITH PEOPLE, have to shop WITH PEOPLE, go to the restaurant WITH PEOPLE. They AREN'T capable of doing things by themselves. They must be constantly inundated with people, whether friends, "friends", or just associates. SAD, really!