As a puma helicopter crewman for about 1600 hours worth, I became acutely aware of the difference between working in the weeds, which we briefed and trained for; and having a pilot play in them.
The hairs on the back of your neck really worked!
We briefed to 50' in military training areas, and 100' in others. You can't relax when at that height and 140Kts- go play twixt the trees and find at your peril that some army guy has strung a wire across the gap for his comms set.
CG