It's fairly routinely known that a lot of employees don't trust their managers, and I've certainly experienced that myself from time to time.
This notes 57% don't trust their managers and gives common reasons-
A lack of regular communication, lying to employees, erratic promotion procedures, favoritism to employees, giving employees minimal support to improve or develop.
This has been my routine experience, with regular efforts to hide bad news, lies about things, blatant favouritism, ignoring direct reports. I look up to my managers and have no idea why they're doing such, or why it's routine behaviour.
From a management side of things, why are behaviours like this fairly common? What pressures from above, the side, or below make them feel that this is a good management strategy that they should follow, to the point where as surveyed the majority of people distrust their managers? Are managers traditionally expected to have trust from their direct reports?
Could someone help me see the manager point of view as to why these behaviours are a good idea?