Madbob, and bush jacket and shorts.
The Stone bush jacket could be either long sleeved, short sleeved, or long sleeved rolled up. Uniform!
You ask when did Forage caps and No 1s stop? You might also ask when did berets and No 2s stop. I have a picture on my uncle in his barathea No 2s and beret.
No so much traditions more a question of habits.