im either going to buy it in a apple store or in a AT&T store then unlock to use with tmobile and jailbreak. i know in apple store u buy the phone and go (no credit checks, no new in stpre contracts...) so my question is in an AT&T store do they do in store contract, credit checks, or require my name...

Reason is that im going to use it with tmobile and my dad is paranoyed and i want to make sure they wont ask any questions and just sell it to me, or if they would start questioning. If there would be such hassle i would go to apple store even though i rather go to att since theres a att store 5 min from my house and apple is 45 minutes in car

Just call ahead of time. Say, "What do I need to do to purchase an iPhone?"