Certainly there are a few rare birds that have the motivation and discipline to pay their cards off each month but that's not the case for 99.99% of card owners.
The level of indoctrinated beliefs when it comes to credit is sky high in this thread. Right along with the level of bad advice and horrible financial practices.
Just think about what's being suggest here. Sign up for a card so you can make purchases you can't afford while racking up interest and another monthly bill.
As opposed to saving your money for the purchase, earning interest on that money and not obtaining any additional debt or monthly payments.
All so you can say you have a pretty FICO.
At the very least you could put 30% down with a credit union and still earn under 10% interest on a used vehicle if you must finance a car and a home can be bought with little to minimal credit history with a strong down payment or equity such as land...
So what's really left for credit card purchases? Things you don't need or things that are more expensive than you can currently afford...or worse you're buying things that should be budgeted like gas or food or eating out. Say a 1-3k purchase. So essentially its okay to lack the disciple to save up for a 3k jiggawhatchamacallit so long as you can convince yourself you're disciplined enough to pay off a credit card each month.
This thread is desperately lacking in good sound fiscal advice.