There are no age restrictions on ownership. However you do need to be of a certain age to have a contracted service. The age will vary depending on the local legislation.
no age at all as long as you get it
Put the iphone in a box of an old nokia phone and wait for them to open it up.
Sure. Most of them that is. Just check on the app's page on the App Store that it is compatible with the iOS version that your old iPhone is running.
No. It was just an old rumor.
Yes
Depends on how old they are
nvvjv
Not in my opinion
yes
3G is the service for things like the internet... just like in the old iphone there is Edge.
I'm assuming this is old as the iPhone has been out awhile, but no there is no return policy with Apple or AT&T.
If you have the iphone 2g(the one with black and white back cover),then the answer is no..But if you have iphone 3 or 3gs,they will let you upgrade the phone to iphone 4 as long as you pay for the new iphone 4. Hope this Helps. And by the way,if the iPhone is Jailbroken,or unlocked,then they won't let you upgrade it. so make sure you restore your iphone before you trade for a iphone 4