You are correct in what you are saying. Like other posters have said, the trick is to pay off the CC every month so that you don't pay interest. In reality, a CC can be an asset if used correctly and claim the rewards by paying it off.
Many years ago I looked closely at the amorization schedule for my home loan. If I kept the house and only made the monthly payment, I was paying almost $300,000.00 for a $100,000.00 home. I thought to myself "what a waste of money". Altho I couldn't pay it off, I could pay a little more onthe principle and pay it off earlier. I did that and after about 5 years, I almost had it paid off. I sold the house and took the equity and built a smaller house with more land and it was totally paid for.
Young people HAVE to pay interest on a loan to get a home. As bad as it sucks, it is the only way for some to acquire any savings (equity). It beats renting for sure. But, any interest you don't pay is like having that money go into YOUR pocket.
If people would take a close look at the amorization schedule and realize they are wasting many dollars on interest that is coming out of their pockets, I'd think most would come to their senses. At least the smart ones.
Hank