Perhaps your baby
You should not eat anything
Surely you've seen how some children with delight and anticipation of a tasty worm pick up and send it to his mouth. Perhaps your baby and do not eat insects, bugs, but what about the dirt and food waste? Is there any harm to have something that is on the earth?
The danger is small, but noteworthy. In the land contains the largest amount of lead, especially near roads and in urban areas. Surely it is less than in the ground outside the city, but there is more probability of catching germs.
Especially need to allocate space with lots of animals. If your favorite park your child wanders a lot of dogs, so the soil elevated fecal bacteria. Broken glass can also cause trouble, but to a lesser extent. Against the background of glass and fecal bacteria most "safe" is eating domestic dirt and debris.