I don’t think any supervising leader intentionally sets out to control a young leader, but it happens. The young leader is inadvertently not trusted or trained and thereby not empowered to lead. Perhaps this is not exactly the same as controlled, but it “feels” that way to any sharp young leader.
This common scenario is set in motion by the combination of pace and pressure. The pace is fast and the pressure (to get things done) is high, so there is little time for conversation and training. The young leader is tossed in the deep end of the pool, and in some cases they don’t know how to swim. How could they? Who taught them?