I've never used a credit card, because people like you got to me before I was old enough to apply for one and warded me off, so thanks :)
However, what's your experience with taking out that home loan? I'm worried that I might one day ask the bank for a serious loan (with a suitable amount of pre-savings) and be informed I cannot be lent to because I have no credit history at all. I know I can get a credit card and always pay it off at the end of the month to get a credit history, but by golly does playing that game sit ill with me.