AITA for going to my brothers funeral?

My (28f) brother (33m) passed away on July 15th. A bit of a back story that’s relevant. My brother and I got put into the foster care system as kids and were adopted by different families. After we got separated we didn’t talk to each other until I turned 18. After we were able to reconnect we talked every day. He was my best friend and I miss him so much. When he passed his adoptive mom was the one who told me and told me she would keep me updated on when his funeral would be so I could go. A couple weeks ago I was informed that his funeral would be on the 24th and 25th of this month. I originally planned to drive out to the state it was in which would take me about 3 days to get there. I was excited to drive since I love road trips and driving helps me calm down. But I changed my plans at the last minute to fly since the 23rd is my daughter’s first day of school and she was crushed that I wouldn’t be there to walk her in and I realized her happiness for me to be there for that trumps mine to drive. I told my adoptive mom my new plans and she told me I shouldn’t go at all and leaving my daughter is an AH move. When I talked to my adoptive dad about it he said the same thing and also added that I should “just get over” my brothers death. But I feel like I made a good decision in being there to drop my daughter off for her first day and being able to go to the funeral. I get that I’m missing most of her first week of school but I feel like this is a valid reason to miss it. So AITA for choosing to go the my brothers funeral instead of staying home for my daughters first week of school?

Add on: my daughter is super super understanding about this situation. She loved my brother probably more than I do. I’ve made sure she has play dates set up and that shes going to have any amazing time while I’m gone. She’s staying with one of my close friends and is super excited about having an extended sleepover.