To some of us of a certain "bone age" one mystery in modern day scouting not least in Cubs was just why from late 1967 did short trousers become an "issue" when in Scouting For Boys B.P. expressly endorsed them even to the point of giving reasons why he felt they were more practical.
From the late 1960's to the end very much of the 80's there was strong level of wearing them in lengths that mirrored school and yet as we got into the 90's this become uncommon to the point there doesn't appear to be standard design.
Often you'll see sport or casual shorts worn if at all .
In Scouts they were eliminated totally by design.
And yet it is not uncommon to see staff out on field activities wearing them even if it seems to be a line NOT to talk about shorts as if they are some old embarassing legacy when in public settings.