Who gets to sit on the team bench?

[ranjo]

During pregame warm-ups last night, I notice two young children (about 7-10 years old) on the floor with the visiting team. They are retrieving balls, passing them back to the players, and not causing any problems. I ask one of the players who they are and he says they are the head coach's kids. The R them asks if I know by rule if they should/can be allowed on the floor or on the bench during the game. I can't pull out a rule that says they can't, so my reply to him is that since there is no rule against it, they can be there.

When the game is about to start, I also noticed three young folks sitting on the end of the home bench as well. It is obvious they are not managers, statisticians, or scorers, but somehow affiliated with the team.

Does anyone have any rule based standards they follow other than 4-34-2 that dictate who may or may not occupy the team bench or be on the floor during warm-ups?