Really? You've never had anyone send a picture or video to your phone?
Maybe it's that I live in southern Georgia (though in a city of 77k) but I tried explaining to people a few times that "if you're going to send a picture or video, send it to my email." The reply was usually the same, and hostile.
"I don't know how to send things to email on my phone!"
"You just type in my email. Or choose it from the contact list you chose my number from."
"Nevermind. I don't know why you have to make it complicated." And this is from 26 year olds who grew up with computers and use them daily.