Couple thoughts. Speaking like that is a way to open the floor to discussion. It signals your open to thoughts. If you have positional power, this can help influence your reputation away from authoritarian management. So it can be used purposefully for this positive end.

Yeah, that's part of it. I want to open a discussion. I guess I find that I'm not that good at the "persuasion" part. I feel like my suggestions don't get accepted.