Indeed, we saw such threads in Buy-It-For-Life subreddit, while having an appetite to some leftover cold pizza from yesterday. However, the thing is that most people do not understand the true meaning of it, and it is exactly what I call the key point.
Possessing a $400 backpack does not make one a minimalist. Having it means wearing a heavy backpack, literally. Longevity requires ordinary actions but not purchasing high-tech devices. It concerns our attitude to our things and whether we use them the right way. Do you read manuals of coffee makers? Do you clear the lint filter frequently? That is exactly what BIFL is about.
Initially, I thought that purchasing a cast iron skillet could guarantee me the possession of irreplaceable utensil. Indeed, I let it soak in water for three days; as a result, it became rust sculpture. Being a maintenance crew is required; you cannot buy everything by using credit cards. Knowing how to manage a screwdriver is essential.
The best example for you to follow is your grandparents. They did not pay for heirloom quality spatulas. Instead, they had the same spatula for forty years and washed it by hand instead of putting it into dishwasher because of their tiredness. Such discipline and dedication is magic; however, it is not related to brand name in any way.
Start from small things. You should not buy a $200 Yeti cooler right away but try to take care of IKEA shelf you bought last year. Screw, dust it and be careful with the things you have. You can move to more expensive ones only after acquiring the necessary skills; otherwise, you will just fill your house with expensive junk.