Likewise, I simply can't imagine how it would have felt when my Mum died last June not to have had my brother there holding one of her hands while I held the other.
Why would you. You have a supportive, sharing sibling.
On the other hand my DH can immagine that losing his mum, after us being left to do the careing, might have been a tad less painful if his brother hadn't been kicking him in the teeth mere minutes after she died.
My DH can immagine NOT laying his mother to rest in the one place she had long begged not to be sent to for eternity. Which he might have had the strength to stand up and fight against, despite his grief, had he not had a lifetime of learning not to cross his domeneering older brother who steamrollers people as a default position.
It's like roulette. You can get greats siblings you can get Ok ones, and you can get outright shitty ones .
You know who my husband can't immagine going through his mother's death without, whose support he can't immagine having gone through all that grief without ?
Me.
That's what I hope for my son. That as he grows as an adult, we will have sucessfully equipped him to choose well. So in his worst of times he will have people to stand by his side, becuase they love him. I don't care if those are his cousins with a family connection, the person he chose to be his partner, or really good friends. I just want to do a good enough job so he knows how to surround himself with good people.