Humans have an inbuilt sense of disgust, and by age 3-4 also have an intrinsic sense of contamination.
Give a 18 month old a cookie with a fake cockroach on it and they will wail, take away the cockroach and they’ll eat the cookie. By 3-4 years old the child will reject the ‘contaminated’ cookie even though there’s no visible signs of cockroach on it anymore.
Poop is extreme pungent and disgusting so easily drives us to minimize contamination.
It’s not just us, most animals strictly avoid pooping where they eat/drink.
Latest Answers