I'm in my late 20s and my wife works on her own startup (non tech tangible product). I wonder if there are others who have their spouses working and how the marriage factored into their decision to pursue a CS PhD. I'm not from USA.

My primary concerns are her startup tanking, me being unavailable for her mental health and of course a steady income.

I sometimes wonder maybe I should pursue a CS PhD after settling down financially by late 40s.