I know of one person who worked part time in industry while obtaining a PhD (also part time) from a major university in the southern California region and anoth

I know of one person who worked part time in industry while obtaining a PhD (also part time) from a major university in the southern California region and another who is currently doing the same at a different major university in the same region. Both people were working for a very large, Fortune 200 company. At the time they were in their mid 20s but I was offered a similar path (I'm in my 30s), but I've since left the company