This is surely legal protection for Apple &al
I'm sure Apple could work another way around this, but it would take a lot of people writing to them,
sending feedback: http://www.apple.com/feedback/itunesapp.html
Something like this:
"Is there not another way around avoiding the constant notice pop-up message of 'age-restricted material' when downloading and updating certain apps?
A declaration that I am the sole users of the PC and iTunes and have no children, for example.
Or simply having iTunes remember my choice of accepting these apps. (and stating "this notice will appear once - you can reset this in settings if you no longer accept the term" or something simple like that.)