you don’t know any one else’s dietary needs

you are arguing in bad faith,

they seem earnest.

maybe. but you’re making up the story so you can tell any story you want.

the price doesn’t need to change at all. if it does, it is a decision someone makes.

There is a reduced supply of coffee beans. Let’s say 30%. This requires that 30% of customers have to be priced out of the market.

this is fiction writing. you are literally making that up