Most children will try to eat the play dough initially, but most don’t enjoy the salty taste. Small amounts won’t do them any harm (because all the ingredients are edible), but avoid eating more than half a cup due to the high salt content of the dough.
Use play dough on washable surfaces and keep away from carpets. If you do need to clean play dough from carpet, scrape off with a knife and brush when dry. Washing away will stain the carpet.