The "losing your job" thing is really a non-argument anyway. Don't spend money you're about to earn, spend money you have earned.
Agreed, and I enjoy doing that with 0% interest and no risk.
This isn't rocket science. Don't spend more than you've earned in the prior period. You lose nothing, you gain anything from 1 to 3% or so. If you don't do it, you're throwing money away. That's your prerogative.
Sure, I'll concede that in the 'gain' column, you get 1% to 3%, and I don't. But it's some twisted logic to claim I'm "throwing money away" when you have to spend $3k to get that in the first place. If we both spend $3k, you get $30 and I don't. But in the other column, those interest rates are looming.
I don't know where you're from (and it's a similar story the world over) but the facts in America are: the average credit card debt is over $5k and most people don't pay off in full each month. If you're in the minority that do, great - enjoy your 1% payout. But that just isn't how it works for most people.
I don't care to pursue the conversation further. If you're happy leaving money on the table, I'm happy to let you. We're only talking about this at all because you felt you had to "educate" those who can manage.
And if you're happy to make illogical arguments to justify taking risks with your money and getting into debt, all because 1% cash back and titanium etching is such a big deal to you, go right ahead. I don't care to "educate" anybody, but the facts are the facts.
Americans - for example - now owe more than $1 trillion on credit cards alone.
Enjoy your $30!