My niece, who just turned 5, knows she is not supposed to have pop. My sister, niece , mother and I were all out for lunch and my sister went to the washroom. My neice jumped up in her mothers chair and started to drink some of her pop. My mother and I said "umm you know you aren't allowed to have that" she just looked up at us and said "well We're not going to tell her now are we?" She was had just turned 4 at the time.