Yes, but at that age it's important to be taught those things and be socialized through all aspects of life. You can kind of think of it like learning a languag

Yes, but at that age it's important to be taught those things and be socialized through all aspects of life. You can kind of think of it like learning a language - you learn it faster when you're fulling enveloped in it. It's easy for parents to miss things that a public school teacher with an education degree would not. Also, children can be taught all of that by their parents and through day care, but still fail to do what they've been taught in a school setting. It's important for teachers to teach those things or reinforce those teachings. I highly recommend asking teachers of young children about this, or looking into what education materials teachers are trained on. Many schools have professional development days, so what a teacher knows and works with changes/updates often.