Hoping to get your perspective on fairness and equality as it seems to be a big theme with my daughter. Everything these days is about feeling upset because so and so has something that is different from hers. For example, her sister’s cup of water is more full than hers, her sister gets to ride a scooter and she has a bike, Mommy's costume came earlier than hers, it goes on and on and on sometimes with big tantrums. We have been validating her feelings around it but we want to understand why she always feels cheated somehow that what she has is not as good as someone else. Also what language should we be using to help her through this?