Utterly stupid little things, its money that is less useful in EVERY situation and expires! Even at the store where you can use it, what do you do with the money that's leftover but too little to spend? Especially at expensive places, you could very well end up with 10-20$ OF YOUR OWN MONEY, that you can't even use!
I was given a dunkin giftcard for volunteering at a repair cafe. First of all I'm on a diet but secondly I stuffed it in my wallet so quickly I completely forgot about it. The day I remember and go through the trouble of attending such a wretched establishment I was told it expired after I finished giving my order! After such bother to try to use this cursed thing I refuse to return fruitless from my endeavors so I paid with my own cash.
It is now, sulking into my hashbrowns and Boston cream do I realize I am now poorer, fatter and fucking miserable. FUCK gift cards.
As an alternative to using a credit card online is a good idea, as good an idea as any for security and anti-tracking if nothing else. But only if you remember to use them.
One other thing is, (and I'm not positive this is true), but people on disability can't have over a certain amount of cash. Giving a gift card makes sense in that instance because it no longer counts as cash at that point.