some men never grow up. i've married 3 of them. and divorced. Hopefully your brother will be the exception on that.
Oh I'm sure plenty of women are the same! Bro never flew the nest, and while I'm not exactly gonna shove him out of the nest, I have been nudging him to at least stretch his wings at last, and made it clear that he can't expect to just curl up in the nest for the rest of his life while I take over as mama bird. I didn't have kids, and don't intend to start now with my older brother!
I want to honour my parents memories, for my brother and I to be okay, however that ends up turning out, and it's what my folks would want me to do, I think. But they also knew what he was like, and wanted me to be happy too. You can lead a horse to water and all that. I'll be a supportive sister, but not going to baby him or pretend he's incapable, or let him hide away and avoid all the hard bits - the time for that has passed, for all of us.
But part of that means I need to look after myself, I know my tendency to run myself into the ground, and while I've caught up on some rest and sleep the last two days, I'm still struggling to eat - have a big mug of tomato soup now I just heated for myself when I fed the dog and made some kongs to freeze for her, so I'll have that while catching up on messages with friends now, have a long hot bath later and an early night, and get more done tomorrow. I know I'm still somewhat shell-shocked and haven't even really begun to process the grief, there hasn't been breathing room yet, it's still been crisis mode, but I am calmer, and trying hard to take better care of myself so I can get through the next tough parts.