Is this really about sibling rivalry? Turn inwards and ask yourself what is motivating your thinking towards your sister
The question My sister spends a significant percentage of her modest income on expensive boutique groceries from farmers’ markets and other high-end food stores. “To each their own” is my view. Fancy foods make her happy and that’s great. She doesn’t spend her money on cigarettes or lottery tickets, etc. And she only occasionally buys alcohol or goes to restaurants.
The thing is, a lot of the food she buys ends up rotting and getting tossed in the bin. This has been going on for years. Fancy cheeses, fancy ice-cream, yoghurt, crackers, bread and all kinds of organic produce rots in her kitchen. She literally wastes well over £1,000 every year on food she never eats. It’s tragic, but what’s worse is that she often complains about not having enough money to spend on other priorities. I don’t think she’s aware of how wasteful she is when it comes to food.