> My advice is: if you have the opportunity to dive into a new field, take it
Also, you are 41 and I would definitely agree that doing one when you are in your 40s would be almost impossible due to things like career, kids and mortgages etc. But the author around 60! I don’t think it’s “tone deaf” to suggest that one may be able to find some freedom to squeeze in a phd while working part time after working till 60.
Edit: I will acknowledge that having a good job and being able to comfortably retire or cut income around 60 is a privilege that many people unfortunately won’t have. But I don’t think its unachievable though.
Moreover, this dramatically lowers the opportunity cost.
In exchange the company will pay you 50% of your salary plus a stipend so that your total take home salary doesn't drop off too much. Does such a thing exist where you live?
The median household income in 2020 was $67,521 [1]
[1]: https://www.census.gov/library/publications/2021/demo/p60-27...
Median personal income is around $36k. [0] Annualized median earnings of the full-time employed are around $52k. [1] Households often have more multiple income earners.