Well, is it really debt if you've never paid interest? I mean, I guess so, but it's kind of a mind game in some ways. Still need to manage your budget in the end. Here in the US, there's actually slowly being a trend to push to ONLY using credit/debit cards. In many ways, I find that disturbing but also, I find it super convienent in many ways to just swipe as well. My credit card can show me all the statistics of my spending. It's nice, and I have protection from them as well in case I get screwed on something.
At the end of the day, to each their own, but if you know how to budget and handle your money, you are getting the most out of it by using a credit card over paying cash. The problem is many people can't figure out that first part.