I would disagree, most people know that they can write to both bob@hotmail.com and to fred@gmail.com, and that they are people using different services. Phone

I would disagree, most people know that they can write to both bob@hotmail.com and to fred@gmail.com, and that they are people using different services. Phone numbers with area codes are still a thing? @ted@funkychips.com shouldn't be too hard to wrap their head around.