Clarification about "Scenes" in Adobe Ch?

I'm just starting out with recording two puppets (sometimes 3) interacting together in Adobe Ch. I'm watching Okay Samurai videos on YouTube because I can't find comprehensive training anywhere else. Okay Samurai talks about having a separate scene for each puppet. I've seen other advice to add multiple puppets into one scene. Is there a good reason I should put individual puppets into individual scenes rather than all together into the same scene? Any explanation about scenes and resources for thorough training in Ch would be much appreciated!

[Mod Note: Moved to appropriate forum}