People without work shouldn't be paid unless they paid into an unemployment insurance program. Otherwise they won't learn. Life isn't free.
The stimulus check is a tax credit, which reduces your tax bill on a dollar-for-dollar basis. It’s like having store credit at your favorite clothing shop when you apply it to your total bill, it reduces what you owe.
You usually can’t claim a tax credit until you file your taxes since you don’t know what you owe until the year is over. Because of the severity of this national crisis, the government is giving qualifying taxpayers their credit early in the form of a cash payment. It will not affect your refund this year or next.
https://www.businessinsider.com/personal-finance/coronavirus-stimulus-check-questions-answers-2020-4