I got a good LOL over this, needed that, TY!
Druids do just fine tanking in 5 mans, it’s when you have a long drawn out fight with a boss that a warrior tank actually shines a little better.
I believe the OP was hinting at offering to tank and run lower lvl dungeons for folks, which wouldn’t be a bad idea, especially if you were offering the service for twinks. 
might be on to something!