I agree with this 100% but you should also see the confusion among non-technical people when my spouse gives them her [email protected] email address (a totally valid inbox on a server that I run, I run our own authoritative DNS and choose where to set the MX, etc).
She works in a non-technical field and some percentage of people simply can't grasp the concept that an ordinary person owns their family name as a domain name.
She works in a non-technical field and some percentage of people simply can't grasp the concept that an ordinary person owns their family name as a domain name.