The development of understanding via age

I do not believe babies to understand nothing when they are young but quite much since they have the senses, social impressions and the löanguage of their feelings and natural communication. I have the impression that babies make observations something like our first impressions of people as adults: there are certain characteristics that we notice, certain rythms and emphazies that make people different and explain a lot about their differencies in skill and ways that kind of create much of their characters. Something akin to the language of sensory & felt impressions which is the natural way of making observations of humans and animal kingdom.
Only later on comes building oriented thinking that is largely born out of the life indoors and doing things with built things, tools etc. Much of the educated adult ways oif thinking are like that. Those building oriented ways of thinking are much more stupid than the ortiginal language of impressions which can handle large wholes in a fraction of a second. Especially social observations get clouded by square forms and straight lines and so people end up in serious clashes when they use those ways of looking at social things. Love and respect toward the nature can cure these errors away. The complexity of trees opens our sense of structures to handle many tens of times more complex structures than the square forms.
In school children are taught good quality building oriented thinking. That is often tsarted by memorizing arbitrary sounding terms and pieces of understanding - instead of explaining based on common sense and not building orientation, why such choices aqre good for that purpose and wise in the world at large. So the children end up with memorized information without common sense backing it up. As they age they get more knowledge and learn it's ways of thinking. They also gain experience of the things mentioned in school but often those are of much less importance to their lives than common sense and social calculations.
The social eye develops via experience to notice in one's experience of life certain points of practical signifigance, but mainly the differencies in social eye are differencies in attitude and ways of living, since compassionate ways tune one to observe clearly and with certainty complex social landscapes so that one ends up in wise action, while hostile and uncaring attitude shuts one's eyes to others. This is one place where religion can help one to do betterin life, since religion emphasizes kindness.