Why don't references in structs have a default lifetime?

[jonh]

structs are unbound by default i.e. 'static. You have to be explicit to contain references. The lifetimes are external of any such structure. (i.e. their creation is before that of the structure and is then supplied to create the structure.)

Maybe info more in recent posting

Access to implicit lifetime of containing object (aka 'self lifetime)

Hi, In my relatively simple app I've experienced the exact same problem very well articulated here: I.e. I had nested structures 3 levels deep, and I had to introduce a reference to the innermost struct. As a result I had to add explicit 'a lifetime to all parent structs that was not necessary before. That's the unfortunate "contagious" effect described in that post. Since post is 3 years old, I wonder has anything changed in this regard and is there an elegant solution available now? P.S.…