I grew up with a younger cousin (2 years difference) who all the way through our childhood would get prioritised by my parents and granny. I mean she would always get the bigger ice-cream and more coca-cola, things like that. She was always allowed to chose things first - and I was always told she is younger and she is our guest so I have to let her have it. As a child I couldn’t understand it and I grew to resent her. It’s a pity as we are in our 40s now and we keep in touch but aren’t close. Obviously I now know why my parents and granny were doing that but it’s too late now, this ship has sailed. I now have a 2,5 yo and a 2 month old boys and I only have one biggest parenting rule- never ever favour either of my kids. They must always get the same stuff, and I will never say to my older son to let his baby brother have something nicer only becouse he is younger. I made my husband promise he will do the same. I want them to grow best friends! Do you guys have the same rule?