Why don't people pray?

I’ve always wondered why people don’t pray. They may say they don’t have time or they’re experiencing a dry spell or it doesn’t “do” anything for them. Whatever the reason, lots of people tell me they don’t take time for daily prayer. I’ve figured out why.
You don’t talk to people you don’t know. That’s all it is. They don’t know God. Because in this case, to know Him is to love Him. If you really knew God you’d want to be in his presence more. But you need to know Him in order to want to be in His presence. What’s the answer?