2009 Chevrolet Tahoe body & structure problems

Front passenger and driver interior door handles are peeling plastic with sharp edges. A child and an adult have cut their hands opening the door from the inside to get out. No stitches required but severe cut. I went to see about replacement. Told not considered defect and the same type of handles would be replaced at a cost of $800. Why would anyone replace them when you know the same thing will happen again with new handles. There has got to be a better solution for this defect.

In regards of my 2009 chevy tahoe LTZ this vechicle has had some issues in the few months of ownership. When ever the car is parked an you exit the SUV to lock it it does not lock you hear the clicking sound like its locked but when you try to open the door that should be locked it opens right up an the alarm goes off an to mention the door handles are chipping away an the plastic cuts almost every person that opens my doors that are not careful.