Playing for playings sake

I hear other mothers say how their child knows colors, shapes, letters, number etc., etc., etc. I let Lauren play. I let her run, play, cuddle, flip around, jump, sing songs, read books with her and occationally we talk about shapes and colors. Should I feel bad? Hope not, because I don't. I want her to have fun. Children her age learn through play. When did learning become everyone's focus? College applications, at least from what I remember, don't ask questions like: At what age did you know the difference in sage and spruce? When did you realize that all squares are rectangles but not all rectangles are squares? When could you count to 1,000,000?
Come on! Let kids be kids.
I know mine is. And I love her for it.