I actually like cash. I also debit card also appeals to me- it has the properties of cash but with the advantage of being all in one light, easy-to-carry card.
I don't think I would want to use a credit card. As much as possible, I want to avoid loans, debts, or owing people. I did some research and most unfortunately found that it is actually more practical to use a credit card for purchases online as it has a defense mechanism which a debit card lacks. Once a debit card is hacked, all the money can be gone as opposed to a credit one, there's one, a credit limit, two, a bill of statement with the list of transactions and you can notify the bank when there are discrepancies.
Me? I just like liquidity. *shrugs*