I guess the OP means pod types (plain Cish structs) where dtors are implicit.

But then what's left of RAII? What resource is there to allocate other than the memory itself? RAII means more than just "get memory to put this in".

Presuming GP includes unique_ptr, there's no real loss of RAII. In my opinion you might as well write trivial classes, but hey, to each his own.