Nav 3, sensible, balanced post, makes a change to see one on here.
Folks wandering about the skies with little appreciation of the big picture are a worry to us all, the instruction they
aren't given must be one cause. Those who cross the approach path as you describe remind me of pedestrians who sometimes choose to walk across a busy dual carriageway from one side to the other and linger 'because they can'. Not illegal, but totally unsafe.