J.O.
I would stop buying red kool aid and just get non red drinks from now on. (I had to do this when my eldest was about three because dad liked the red drinks too but either did not notice or was too lazy to clean up after himself so I changed tactics) Also instead of bleach try hydrogen peroxide on the stains. Soak a bit of paper towel and leave it on the stain for 10-20 mins and wipe it up afterward. Good Luck!