DD is just 4, and across the road is a little girl, "Amy", who is 4.5. DD really wants to be friends with Amy but Amy isn't interested. They are in the same day care, so often play in the same playground, but they are not in the same class.
Every day when we get home, DD checks for Amy's mum's car at their house and begs to call over to play, but any time we do call, Amy doesn't want to play with DD [. I don't know what to do. Amy is a nice little girl and I don't expect her to play with DD if she doesn't want to, but I don't know how to explain to DD. I've said Amy wants to play with other friends, but DD can't understand why she can't join in
. Any advice?