The closing thought is right on point. I also think that your brother is great with your niece. I can resonate a lot with the story. I learnt to appreciate how my partner takes care of our kids too because somehow he manages to do it without so much stress/mental load. Not as “good” as how I would do. For example, he forgot snack, diaper, spare clothes or just propped our 5 month baby up with pillow and let her hold the bottle instead of holding her to feed her, etc. However he shows me that it does not have to be that hard, “perfect”or my way and the kids survive and happy.