Children and Faith
As a father, I believe that most small children easily believe whatever that they are told. And since small children lack good reasoning and logic skills including common sense, small children easily believe in faith too. In other words, they do not believe in faith as default, instead it is taught to them.
On the other hand, older children eventually learn how to think more logically, and thus they should start questioning faith and religion. This is normal and healthy behavior for older children to try to understand the world around them. If older children do not question and eventually reject faith and religion, then it is either a sign of poor education or a sign of underdeveloped mental facilities. In other words, not questioning anything because of lack of evidence is an indication of either low intelligence/education or mental illness or even both. For adults, lack of education and ignorance of logic and common sense is absolutely inexcusable.
In conclusion, I believe very young children do not have faith. They simply are very good learners and are trustworthy with whatever that they learn, because small children do not know how to analyze and question facts and beliefs told to them. Especially since small children cannot even distinguish between facts and beliefs. Children tend to believe whatever their parents and teachers teach them, even if it makes no sense at all (such as Santa Claus, Tooth Fairy, Easter Bunny, etc.). This is not faith; but rather, this is just learning. Faith is believing and accepting something without evidence. Young children do not require evidence to believe, since they do not know about evidence or reasoning.
by Phil for Humanity