I Know Everything and Nothing

I have just realized that we all go through life knowing nothing and then thinking we know everything. When we are kids, we don't know everything and we don't care because being a kid is fun. Then pre-teen adolescence and teen years, we know everything. College, nothing. Graduate and get a job, everything. Have a child, nothing. (Retirement, everything? Not sure yet. I haven't gotten there)

I see it in the children playing in the water fountain when their moms tell them to be careful. The either do what she says or don't because they want to do it so badly, not because they think they know it all. Then in the teens when they walk around town with their friends. They know it all, or at least they have to try and act that way. The college goers just have a deer in the headlights look (or maybe that's just a hang over). I notice this in the young twenty somethings without children. They know how to stop my child from crying when we are in public and are disgusted that I don't. I am sure they will understand in their next step, or at least see it in their close friends' struggles. Having a kid, I am not sure I will ever know enough.