17+
Largely, it depends on the standing of the parents on whether or not their 9 year old should play Call of Duty or not. It should also be noted that the modern Call of Duty series is rated "M" for Mature 17+. This rating is not posted on the original Call of Duty, Call of Duty 2, Call of Duty: United Offensive, or Call of Duty 3 - in which are rated "T" for Teens.
no
18! or more
18 years old to purchase, but you can play it at any age.
18+, read the BBFC rating
there is no reason
Call of duty 2 through call of duty4...they are more cartoon based than the later versions
Yes, yes they do
Play Call of Duty.
no
There are six year olds that play it, but it is up to the parents to decide if you can or not.
I think call of duty is very addictive. In fact yea i may be a twelve yr old girl called Matthew but i play it every chance i get. Yea its addictive but play it!