Here's something that is important for the whole group to pay attention to: Character Roles. The best description of the problem I have read came from Fang Langford when he was working through his description of Scattershot a few years ago. At the time he called it Sine Qua Non, Latin for "without which not". [The current version is here.] It is important to clearly label the ...

It’s inevitable. DM long enough, and kids will crop up in your adventure. They’ll either need to be rescued from a trap or a villain, one decides to tag along for protection or curiosity, or like Sherlock Holmes’ Baker Street Boys, you’ll come to rely upon a gang of them to run errands and gather information. So it’s a good idea to have some standard children rolled up. ...