This article about making more sustainable clothing choices points out that by wearing a garment twice as many times as the average before discarding it, the environmental impact is lessened by 49%.
It goes on to say that it's hard to get numbers on what average is, but one survey estimates clothes get worn seven times. Looking at all the factors, I understand it. But thinking about how little 14 wears is, 7 hammers home the frantic pace of it all.
https://www.nytimes.com/2022/05/20/fashion/fast-fashion-sustainable-clothing.html
In this article about vintage sellers having a hard time sourcing because fast fashion has caused a glut of poor quality stuff at thrift stores, the statistic they use is that Australians buy about 26 kilos of clothes a year and discard 23 of them, and that most fast fashion clothes are designed to really only last a short cycle of seven wears: https://amp.smh.com.au/lifestyle/fashion/how-the-seven-time-rule-is-destroying-vintage-fashion-20220408-p5ac0v.html
