My fiancee left a lovely stats PhD program at Maryland after two years and entered the workforce instead. She started the fall before the COVID-19 quarantine in the US, and while the shift to online only exacerbated her feelings, there was plenty worrying her to make the decision palpable. Her stiped was meager, her advisor was functionally absent and _would not_ use their computer, and the thought of coming out the other end six years later with debt from her undergrad and no job - or worse, a job she would need to spend more money to accept and move for than she had on hand - was terrifying. To the best of my knowledge, I don't think she regrets her decision. I'm sure she wishes the conditions were different, but the value of a PhD today has been dragged down so thoroughly that it only makes sense for a privileged few.