Play is the work of childhood.
--- Jean Piaget
I am very glad when Caroline gets to play with children (or just SEE them play) as this helps her to learn HOW to play*. She got a good lesson when her cousin Gracie came to visit. May she enjoy all her "lessons" so well!
I should note that many of Caroline's toys, including her much-used kitchen playset, are courtesy of Gracie.
May I add that Caroline might have learned a lesson that I will regret as Gracie beat the stuffing out of me. Who knew that little girls could be such brutes???
(*) If she learned this only from me, she'd think that play consists of nothing more than blasting zombies on a video game.