In the modern day, people may find it impossible to avoid buying stuff. Sometimes, we might just think that this is simply due to the covetous nature of human beings. Indeed, this greed and desire for status manifested through symbols of material wealth certainly does contribute to uncontrollable consumerism. However, no matter how much of an ascetic one may be, it is genuinely difficult to avoid making unsustainable purchases, and this is a product of planned obsolence. In a world where our everyday lives are heavily entwined with technology, it is difficult to avoid making purchases if products break on a regular basis. You can't even purchase a cell phone without having to replace it four or five years down the line! I believe that by circumventing planned obsolence, we can not only make the world a more sustainable place, but we'll also make technology more accessible to people with lower income, thus improving general quality of life.
I envision a world where people can continue use products for more than ten years at a time without malfunctions. I also hope to see a world where even the lower class can have access to functional cell phones, washing machines, kitchen appliances, etc, without having to having to frequently repurchase.
A potential solution to mitigate planned obsolescence would be to advise people to, if possible, purchase older products that are known to be durable. I remember the stories from my parents where they would accidentally drop a flip phone from the third floor and the phone would be perfectly intact. Another way to combat planned obsolescence would be to purchase appliances that have more analog components than digital components to facilitate repairs as digital components tend to be more difficult to repair compared to mechanical ones.