One word - "Feelings". Kids invoke feelings, people are susceptible and ruled by them. Logic is then applied to the decision to justify.
Not everything in life is logical.
The difference is people who can segment feelings from impacting making logical decisions.
Edit: Or, you know what? I deny the entire individualistic framing. I think to actually make logical decisions about anything of substance, it takes more than one person. For things that don't matter, like what to eat for lunch or what book to buy, it's fine letting your emotions take the wheel.
I think the individual logical person is a myth. We're social animals. Logical reasoning is a collective enterprise.