I'm failing as a mother

So, Lilly comes in this morning to get me up. Kelly and I get out of bed and I say, "Let's make the bed." Lilly watches us straightening the blankets and she asks, "What are you doing?" She didn't know what it meant to make the bed. I was speechless. What kind of mother am I who has a child who doesn't know what making the bed is? I have failed. Needless to say, this will become a priority in our home (as it should have been, oh, about four or so years ago)...This is sad.