Being a functional adult is essentially self parenting. It’s cheaper to clean and maintain than to constantly buy new or neglect issues until they snowball. Easier said than done, it’s definitely not always easy but worth the time.
While I completely agree, maintaining your items will make them last much longer, I feel the degradation of quality over the years works so much against us. Many items are made these days to not be able to be fixed. Sometimes a digital display or button breaking can brick a well taken care of item. No matter how well you take care of clothes and furniture like your grandparents did, that particle board will fail and that fast fashion shirt will pill. Even high end brands have gone down in quality significantly, so investing more in something you think you trust can still be frustrating. It's so much energy to figure out what you should invest in vs buy cheaper.