Earlier quoted context omitted.
Yes, it is very unwise to use any Google product or service for any business purpose.
It's very unwise to lie to a service provider when they explicitly ask, especially when setting up an account where money will change hands. That is technically actual fraud. Google's not gating out under-18-year-olds for fun: they're a business, they'd love to make more money. Contract law in the US forbids people under 18 from entering into broad categories of contract, and Adsense use operates under electronic con…
no, that's not fraud. It might be an element of fraud if it was a loophole you were exploiting to use the account for some fraudulent purpose, but fraud requires theft or similar, not just technical violations of terms.