This is a schematic process flow diagram of the processes used in a typical oil refinery. This process flow diagram (PFD) example was redesigned from the Wikimedia Commons file: RefineryFlow.png. This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You have to be at least 18 to get a credit card but to get a debit card( which is where you get money from your account) you have to be at least 11/12. My husband had his first at 16 or younger. He lied about his age (which is illegal!).
You can also get a prepaid card under age 18. A prepaid card isn't a credit card, but it looks like one and swipes like one. However, you have to prepay any purchases you make on the card, versus paying for the purchases after you make them.