But your hammer can't be manipulated by a random person anywhere in the world. Software, especially an email client, is significantly more complex. Many people

But your hammer can't be manipulated by a random person anywhere in the world. Software, especially an email client, is significantly more complex. Many people don't have the time, desire, nor ability, to learn how to use it safely - and the usage of it is generally forced upon them. Let's make things safe by default.