It's a good personal rule, I never use credit for anything at all myself.
Every week I see some people putting groceries on credit, and the very next week those same people have their card is declined, so they aren't paying it off.
I just don't think "gamblers" or "gambling" should be given the same predjudices here as in the general public perception.
I've never owned a credit card myself, because it's too much of a temptation, not gambling - just generally.
While my mates went out and got car finance for the latest VB Commodore, I saved my pennies and bought an EK Holden and got far more fun out of it, because I worked for it AND waited a long time for it
When I sold it, it was worth more than I paid for it (wish I hadn't sold it now), when they sold their cars, they got just over half the showroom price and still owed money.
But that's off topic, sorry.