We are starting them young! Aiden loves the tractor. My oldest grandson, almost 4 years old. He thought it was hilarious that we don't have any animals on the farm. He kept saying "You have 4 cows." I said, no. He said "You have 3 cows" I said no, zero cows. "Two cows." "Zero cows." "One cow." "Zero cows." "HEEEEE HEEE HEEEE HEEE." When we arrived and opened the barn, he looked in, and said "Where are the cows?"