Parents play a big role in the spiritual formation of their children.
Samuel =
Samuel was probably 3 years old when he was left with the Temple Staff. 3 bullocks for each yer she missed while weaning Samuel.
1 Samuel 1:24 AV
And when she had weaned him, she took him up with her, with three bullocks, and one ephah of flour, and a bottle of wine, and brought him unto the house of the LORD in Shiloh: and the child was young.