When I carry I use a strong (right) side kydex holster with a G19.  What are people typically doing that  causes them to sweep themselves?  Are we talking legs/feet or other body parts?  Just curious.  I did some practice draws and don't see an issue, but then I've always been big on muzzle discipline.  TIA 
I've seen a number of people muzzle their reaction hand from a strong-side hip holster. This can (and should!) be solved through training. 
People also sometimes shoot themselves in the foot when they reholster. Again, training can solve this.