I didn't know Moslems allowed it?
I don’t know if your comment is serious, but in fact, Moslems have troops of Boy Scouts in the United States. These are generally limited to Moslem youth. (In Girl Scouts, it’s not improbable to find a Moslem girl in a school-organized troop, because Moslems who let girls do anything are like, reform Moslems.)
Boy Scouting is found in many Moslem-majority countries, such as Pakistan, which have a British-colonial heritage. They were re-established in Iraq, after the fall of Saddam Hussein, by British and American soldiers. I could go on, but you get my point, I’m sure.