Earlier quoted context omitted.
I don't think such an absolute position is warranted. It's true that saving up for a big purchase will end up costing you less money than borrowing to pay for it and paying it back. But you will have the item purchased for less time. Suppose you have enough disposable income to pay for a new $1200 TV over the course of 12 months. In scenario 1, you save $100 each month. The bank pays you 0.5% interest. As of January…
> Suppose you have enough disposable income to pay for a new $1200 TV over the course of 12 months. In scenario 1, you save $100 each month. The bank pays you 0.5% interest. As of January 1st next year you'll have a new TV and $2.75. In scenario 2, you put $1200 on a credit card with a 10% APR. You pay $100 each month towards the credit card bill. As of January 1st next year you have a TV you've been watching for a y…
I feel like the issue isn't just the TV. It's that it's the TV, plus the next thing, plus the next thing. Or in other words, tiers of debt usage from best to worse: (1) completely avoid paying interest charges, (2) pay interest charges on large purchases with full knowledge and planning and in a responsible manner, (3) pay interest charges without knowledge of what you're paying or what to do about it.
Personally, I think it's a failure of financial literacy of the US educational system on one of the most important aspects of kid's lives. I have met incredibly educated people that are still ignorant about how credit cards/interest charges work and only internalized "Never use credit cards!" advice. I've also met less educated people who never think past "This is what it says the minimum payment is, so I pay that."
Neither position is good. And they. aren't. that. complicated.
The disclosure sheet gives you annual fee (if any), APR when interest is charged, and any penalties that may result in an APR adjustment. After that it's simply "If you have a >$0 statement balance from the previous month after your due date and payment, then you begin accruing interest on the daily total of your balance." Not rocket science.