I did not have to introduce it. I took them to the backyard to look for bugs when they were about 2 weeks old. They sensed a beam of sunlight on them and right there, they took their first dirt bath. It was the cutest thing ever. It is instinctive.
Mine do it when the day is sunny and the dirt is dry, loose and warm
Mine do it when the day is sunny and the dirt is dry, loose and warm