Damn. Goes to show that not all shitheads are yukkuri.
Well,she can't get anything even if that kid helps her. The cheapest candy sold in Japan is much expensive than 1￥...
I'd buy a candy saying I used the 1￥ coin and eat it to make the ko even sadder lol
According to Candy Warehouse, one pound of Haribo Gold-Bears contains approximately 200 gummy bears and costs $4 (assuming bulk discount doesn't matter).
200/(4/0.01) ~= 0.5 gummy bears per penny.
1 yen ~= $0.01
Therefore koMarisa can buy 0.5 gummy bears for 1 yen.
However, even finding a person who is willing to sell one half of a gummy bear doesn't actually do much.
An adult yukkuri, who is normally the size of a basketball by some accounts, could be the size of a handball if they're malnourished and genetically (?) small. The average handball (averaged from the three official sizes) is 13.5oz. A gummy bear, according to Vat19's size comparison, is 0.13oz. The adult yukkuri is, even if it's small, over a hundred times bigger than the gummy bear (assuming equal density).
Supposing that the koMarisa somehow did manage to find a big enough and cheap enough gummy bear, what's to stop her from eating it? Sure, she might be a nicehead, but if the gummy bear is big enough for adult Reimu, it is probably too alluring for koMarisa. As koMarisa slowly (because she's small) drags the gummy bear home, other yukkuris, or even insects, could attack her and steal the gummy bear.
Nothing good would come out of eating the gummy bear. Gummy bears are, according to Sara Ipatenco, almost all sugar - and sugarless gummy bears tend to contain not enough calories This sugar content will probably ruin a yukkuri's taste buds, since even bean paste, which is less than half sugar, can elicit a "munch munch happiness" response; there've even been stories of pure sugar acting like drugs to yukkuri. In a setting where food is scarce, yukkuris cannot afford to be picky. While both could manage to eat what they've scavenged, they would probably miss the taste of sugar, possibly making rash decisions or getting anti-yukkuritis.
It seems to be consensus that food is better for yukkuris than money. An abuser would notice a yukkuri telling the vending machine to accept money, or other yukkuri might try to steal the shiny-shiny, et cetera.
Maybe the human really wanted to steal, and cause sadness, to the yukkuri. But no matter what their intentions were, the fact remains that a candy would be useless, and that money doesn't help the yukkuri.
As a closing note, I'm not that familiar with 9th's yuniverse, so if anybody knows more, or if 9th releases an alternate ending to this story, this idea of sugar being bad because it's good might be wrong.
Thank you for coming to my TEDxOYP talk, and stay safe from the coronavirus!