Why Almost Everything Stops at 18

The pattern, once you have seen the list

Go through the app list one page over and something jumps out.

The sign-up ages are all over the place. Thirteen here. Sixteen there. Nothing at all on a couple of them.

The payout ages are not all over the place. Venmo, 18. Cash App, 18. Square, 18. Shopify, 18 or your state's number, whichever is later. Upwork, 18. Mercari, 18. Fiverr, into an adult's account. Even the ones with no age rule of their own, like the YouTube partner program, run the money through a system that has one.

Every app that actually moves money to a person converges on 18. The 13 and up numbers are account numbers, not payment numbers.

That is not twenty companies making the same odd choice. That is twenty companies running into the same wall, and it is worth knowing what the wall is made of.

What the wall is actually made of

It is contract law, and it is old.

A deal made by someone under 18 is usually still a real deal. That surprises people. The common line is that a minor cannot make a contract at all, and that is just wrong. What is true is that the young person can generally get out of it. The word for that is disaffirm, which means back out.

Now look at it from the other side of the table.

You can leave. They cannot. They are holding an agreement that binds one of you.

For a lot of businesses that is fine, because the deal is over in a second. You hand over money, you get a drink. Nothing is left hanging.

But an app that takes money for you is holding your money and standing behind the sale for weeks. It is signing up to a long list of promises with you, and it needs those promises to hold both ways. So it does the same thing a car dealer or a phone shop does. It asks for an adult.

Washington Courts puts it in one line in a lesson written for students: this is why most stores require a parent or other adult to co-sign.

The question nobody answers

Every page on this subject asks: can a minor sign a contract?

That is not your question. Your question is: will anybody sign one with me, and what do I hand a customer who wants something in writing?

Nobody answers that one, so here it is. The answer is that many will, and the thing that makes it easy is an adult standing next to it. Not instead of you. Next to you.

The part that cuts the other way

There is a limit on all this, and it is worth knowing before somebody uses it on you.

In Washington, once you have gone into business like an adult, you lose the right to back out. The exact wording is below. Their own teaching material works through it with an example of a 17 year old running a t-shirt business who wanted to cancel her orders. The answer given is no.

So the internet's favourite line, that a young person can walk away from any deal, is not something to lean on. It is thinner than it sounds, it stops applying once you are clearly in business, and it works differently state to state.

Take your deals seriously. Not because a court is coming. Because you are running something.

What to take from this

Three things.

One, the wall is real and you will hit it. Stop reading pages that pretend a teen account is a business account.

Two, the wall is not about you. It is about whose signature is worth something. That is a boring fact rather than an insult.

Three, there is a normal path through it, and it is the one the apps were built for. An adult holds the money side. The next page is about what that actually means for both of you.