When my brother and I were in elementary school, my mom wanted him to be more independent in the kitchen. She focused on encouraging him to learn how to crack an egg, but he was scared. She offered him a dollar if he would do it.
Even though I was almost three years younger than him, I already knew how to crack an egg. But, oh no. No dollar for me. I'm quite sure I whined disproportionately to my perceived injustice.