Kids only like Teddy Bears, Cute Dolls and Footbags... basically toys that kids would like in general.
There is a Thief NPC too, he will try to steal from you if you talk to him, he is the one the Soldier is looking for. Rain lowers the spawn chance of NPC Travelers slightly but does not eliminate it.
Currently trap damage is a flat value and "type" is just a cosmetic, they don't get affected by Toughness but double your Agility and Luck are subtracted from the damage. Also, having, Lightning Reflexes Perk will half all Trap Damage. In the future, types of damage will be expanded on and will be affected by Toughness/MR etc.