It may be new software, a fashion trend, or something unique; people struggle to adopt it. It is not because there is anything wrong. It is primarily due to the problem of looking at the new world with the old pair of glasses!
Time and time again, the same phenomena repeat consistently.
It may be adopting the Scrum framework for ERP projects or using new software. The default response of the stakeholders is to pushback with objections.
We have to help see the new world with a fresh pair of glasses. And how you do this is a magnificent art of change management!