I don’t understand email. How do I know which email service to choose? Won’t I be stuck only communicating with people on the same server? How will people find me? What if I don’t like my service and have to change my email address? Or if my service goes out of business? Why do some email providers charge money and others are free? Will I get ads in my email? It’s all so confusing. Why don’t we all agree on one giant email server that we all use that is secure and benevolent and free?