I'm standing right beside Nine on this one. Things can be taken too far sometimes. Asking the (approximate) age of someone when you don't know where in the world they are, their gender, real name, etc. seems pretty safe. Besides, let's face it: If someone is asking for age-specific help they can't get it unless the age range is known. And if they've been trained not to provide it they can decline the request or lie if they feel that's indicated.