I agree with you Iris! An intern could feel like he/she can bring up more easily certain ideas if it is a start up project still in the developmental phase. It is sort of a brainstorm session, so any idea might help enrich the new project. On the contrary, I feel like there's a lot more to learn in cases of well-established working practices: of course some ideas can be brought up also in this case but it wouldn't be the first thing to do, compared to trying to learn as much as possible.