If you're routinely buying and throwing out $25 plates of food, then you're in a different income bracket than many people. And then, yes, avoiding a $3 app is more nonsensical than for most.
Plenty of university students around me who will order a $8 boba tea and be disappointed that the boba is cooked poorly or the milk ratio isn't good, and then do it again a couple days later.
But the difference is that food elicits cravings - you buy it because you imagine how good it'll be if it's done right this time and your body pressures you to buy it. Apps don't do that.
No one said you’re routinely doing it. It just happens for thing at orders of magnitude higher than what can be asked for software. One bad coffee, or meal or a %20 tip on a $40 order of pizza is far more than the 1.99 or 3.99 software can ask for, and it’s still too much. Tipping $5 or a $10 is not a big deal, but a $1.99 app is like “ooof, is there like a free version?”
It’s not even a blanket statement on software. gamers have shown they are willing to pay, though their money comes with strings attached. Mac users are more willing to pay than Windows users who are more willing to pay than Linux users.