Taking Kids To NASCAR

When is the right time for kids to start attending NASCAR races? I think at about 5 years old my little ones will start going to local races with me. When I see how he does there we'll consider some big-league racing (most likely a Busch Race or NEXTEL Cup practice day) and then finally a full NASCAR weekend. I'm guessing he'll be close to 8 years old before he's ready for us BOTH to enjoy the trip. Stop by the forum for more of this great discussion.