Well, if you were taught these things in school, good for you because the majority weren't. There is a formal education that they teach in school, and there is the school of life. You woke up at 5.00 am when you were younger to cram the parts of a grasshopper (pun intended), so you would pass your science test, and that is part of formal education. Education is the initiative of both the parents and the school.
In Africa, we say it takes a village to raise a child, and a child belongs to the community because a child is taught and instilled knowledge by everyone: teachers, relatives, family friends, etc. It's not everything that society teaches us and some things we get to learn by ourselves. Education is a continuing process, and it never stops. Though we may not attend a class to learn, we never stop learning. This leads us to the first point.