Earlier quoted context omitted.
Using credit cards does not preclude being able to afford the thing you are paying for. I regularly use my credit card for every day purchases despite having ample money in my checking account. The regular payments allow me to develop a good credit history without much worry.
Why can't you use a debit card for that? Isn't having enough money in your checking account to reasonably afford all stuff you need to live basically proof of a good credit history? Isn't the best credit history one where you never need credit in the first place?
In practical terms, because in the US the handling of debit card fraud and credit card fraud is vastly different.
In the case of debit card fraud the money is gone from your account and you then spend some months trying to get it back. In the meantime, you don't have that money.
In the case of credit card fraud, you contact the credit card company, they reverse the charges, and then it's their problem after that point, not yours.
Assuming you have any self-discipline at all, a credit card is a _much_ better idea than a debit card in the US.
> Isn't the best credit history one where you never need credit in the first place?
The best credit history, if being used for the sane "will this person make timely payments on this loan?" reason, would consist of a history of timely payments on exactly this type of loan, with no debt outstanding right now.
Never needing credit before may mean you always had lots of money, or that you simply never tried to do anything that involved any large amounts of money and now you want to do such a thing....