That depends - I can see several reasons why (some) international coordination can be beneficial - areas where the alternative is a number of bilateral agreemen

That depends - I can see several reasons why (some) international coordination can be beneficial - areas where the alternative is a number of bilateral agreements. Say, organizing jamborees, helping nascent scout movements get going, providing training and educational material to national movements, liaising with other international NGOs &c, &c. That being said, I doubt the WOSM/WAGGGS affiliation is at the front of many scouts/guides' minds during day-to-day-activities.