I once read an anecdote about a child dealing w/the death of a pet dog. The thought that dogs typically die somewhere in their teens is because they bring consistent joy & happiness. Always looking for & to provide love. They have short lived because that's their default.
When someone like Chadwick is taken so early, I can't help but think that while we would have liked for them to be around much longer, they already did enough good. He was T'Challa while battling cancer & we had no idea.