This is one really negative way we can impact on others.
It’s easy to reduce other people's motivation by being resistant to hearing their ideas.
In general I always prefer to make decisions quickly and not feel shame if those decisions turn out to be wrong later. Healthy organizations make choices quickly and learn from those choices. That’s okay.
It’s much more healthy than analysis paralysis where decisions don’t get made and the team doesn’t get the opportunity to learn.
I would qualify this that ideas to need to be a match for the core values of an organization and relevant to its purpose. See active problem solving.
While ideas are encouraged, managers who live and breathe the company values also sometimes have to encourage ideas to move in certain direction or make decisions. These decisions may not be the right ones, but it might align the closest with our value at the time - which give us the opportunity to learn iteratively and learn from that choice.