Of course he does. If he still has time to use the net then it's a fairly safe bet that at some point he will visit a joomla powered web site.
With Joomla being used by the UN, National Governments, leading NPO's and US Senators and Governors he surely must.
But that isn't what this blog post is really all about or why there is a photo of lion accompanying this blog post.
The web was meant to be read, not squished.
This isn't the way to test a responsive design.