My kid wants to buy expensive equipment, should I let them?

There is a specific pattern worth recognizing, because it catches adults as often as kids. The business is slow, asking people is uncomfortable, and buying a better machine feels like progress. It is not progress, it is the most satisfying possible way to avoid the one thing that would help.

So the first question is which of those this is. Do you have customers waiting on this, or do you want this? A kid can usually answer honestly if the question is asked without a preferred answer in your voice.

Then make them do the payback math, and make them do it rather than doing it for them. This costs two hundred dollars. You clear twenty five a job. That is eight jobs before you are back to even, and everything after that is yours. Do you have eight jobs booked?

That calculation is the entire lesson and it takes about ninety seconds. A kid who runs it once will run it for the rest of their life, and plenty of adults never have.

Borrowing or renting first is almost always the better move. One weekend with a borrowed machine answers questions that no amount of research does: whether the work is actually pleasant, whether customers want it, whether they are fast enough at it to make the price work.

Then let them buy it anyway, sometimes. It is their money. A purchase that turns out to be a mistake at fourteen costs two hundred dollars and teaches something that would cost a great deal more at thirty. The instinct to prevent every bad purchase is the same instinct that makes the business yours.

Two places to actually intervene. Safety, where a piece of equipment is genuinely beyond what they should be operating, and that is a no rather than a discussion. And money that is not theirs, because a kid who wants you to fund it is proposing a loan, which is a different conversation with different terms and should be treated as one.