manuel on 27 February 2012
| leper-apostle said: how does N even know the ages of people playign DS? You dont need to rewgister if you do PARENT often do it fot ehri kids. Fail graph. Its not like PS3 or vita where you have to sign up for an account. |
It's called "interview survey," which is quite a valuable and accurate way to research stuff like that.
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