Punk is 13. He’s a good kid. He’s bright, well-mannered, hooked on MineCrack.

We just opened his first checking account.

It started when a friend called. He works at a bank and owed a banker a favor, so he asked me to open a new checking account. I’m overbanked, so we decided to open an account for Punk. He wouldn’t even have to know.

After we filled out the paperwork, I started thinking about it.

He’s been money-conscious since he figured out basic math. We’d offer to buy a $5 toy and he’d scour the toy aisles looking for the best deals, weighing the pros and cons of all of his options.

When he wants to buy something now, he doesn’t come to me without a compelling argument why I should let him.

He gets himself to school in the morning, and almost always does his homework without prompting.

He’s a pretty responsible kid. Teenagers are-by definition-stupid, but I generally trust his judgment.

We decided to let him have access to the account, then promptly forgot about the whole thing.

Last night, he asked if he could buy some package for some MineCraft server. That handy reminder made me actually take the steps to activate his debit card and have “the talk”. Money, not sex.

I taught him how to use a checkbook register and told him that if the balance on the bank’s site ever disagrees with his register, I was taking the card away.

I explained the pain of overdraft fees.

I taught him a bit about credit card fraud and how to avoid it.

I handed him the packet of documents and told him he has to read them all. All of them. My roommate laughed at me over that requirement.

From there, he opened a Paypal account, attached his card to it, and has free rein.

It’s his money, he can make these decisions. It’s low stakes, so there’s no need to stick my nose into it unless he asks. Even if he totally messes up, it can’t hurt too bad at this point, and he’ll learn an important lesson when his next meal isn’t on the line.

Next, we’ll take him down to get a state ID, so he won’t have a problem using the card in a store.

Welcome to adult finances, Punk.

What do you think is the right age for a checking account?