A lot of play at our house involves caring lately. I think it's lovely. Children should be encouraged to model care and empathy. It builds the parts of our brains that deal with these emotions, making us more caring and sharing as adults.
I stumbled across his little play scene Ed had set up the other day.
Apparently it was rest time for the Lightning McQueen brigade and the little blanket was keeping them 'cosy'. Aaaawwwwwwwwww!