Earlier quoted context omitted.
Setting your incredulity aside, I'm curious why you think using a debit card would be so shocking. I effectively don't use a credit card at all: I use a debit card (or an equivalent Apple Pay representation thereof) exclusively. From my perspective, if I want something and I have the money, I'll pay for it. If I want something and I don't have the money, I won't pay for it. I don't often want things outside my budget…
You are young, you want to use a credit card to protect yourself and build credit history. Using a debit card, in the event of fraudulent charges, the money is already gone from your bank account and now you are negotiating with your bank to get it back. With a credit card, you file the claim and its generally resolved before your statement closes and anything is due. Your card will also be immediately cancelled, so…
I have had exactly one encounter with fraud: a vindinctive ex-girlfriend stole my card info and had herself a little shopping spree, emptying my checking account. I walked into the credit union branch, filed a report, and walked out with $300 and a new card. All the stolen money was restored within a few days. It was not a big deal.