There’s really only one way to travel down a waterfall – in a barrel. A lot of people died this way, but some survived. Software projects have been predominantly waterfall projects since the start of software projects. And stakeholders rode down those projects, basically in a barrel. The people riding Niagara Falls 100 years ago didn’t know if they would survive until they got to the end. Stakeholders in waterfall projects don’t know if they will succeed until the end.
An agile project is dependent upon tight interaction (and feedback) with stakeholders.
If you’re running an agile project, and your stakeholders are old-school barrel-riders, how do you make it work?