I think some would be good for teaching little ones about germs, hand washing and getting sick. I do not see the need for them to see a big need for the kissing disease, herpes and gonorrhea ones, if you are learning about these I don't think you need the stuffed animals. I also think the organ ones are cute for preschool/early elementary.
ETA I do hope they don't sell any of the Burning Love, Burning Love2 or Spread the Love. Those are disturbing. However I thought about sending to @Spiky Bugger for her birthday!