I got a Pantech Crossover for my oldest kid, because it's cheap and doesn't require a data contract (it's pay-as-you-go AT&T phone). He's happy with it, but one thing I'm really unclear on about Android is if I add a credit card to Google Wallet for use in the Google Play store, will it require entering the Google Wallet password in order to make a purchase, because after I added the card I was not prompted to enter the password when I made a purchase for him. It just went through without question. This is a problem seeing how I don't want him to buy stuff on my credit card wily nilly. Well, actually he's a good kid and wouldn't on purpose, but I could certainly see it happening by accident. So I'm hoping to hear that at the very least it signs out automatically after a short while. Problem is I can find absolutely nothing about this via searching or looking at help. The most it seems to say is to be sure give the phone a lock password, but that's no help in this case since obviously he needs to be able to unlock the phone!
FYI, on iOS, every purchase requires entering the password. I was hoping it would work the same way in Android. I'm also wondering if maybe the Amazon App store worked this way. Then that might be the solution. For now I deleted the credit card after the purchase, but what a pain in the ass that is. Having to re-enter the card every time.