Question

Some people advise the use of debit cards (rather than credit cards) because the use of debit cards __________.

Answer 1

In most cases there is no difference in the prize of an object depending on whether a credit card or a debit card is used.

So the main difference is that using a credit card, people can buy more than they can actually afford, so they can have debts as a consequence.
So people advice using debit cards as a way of avoiding debts.