Hmm.. what kind of doctor? Someone with a PhD, or a medical doctor?
In principle, I guess I'd be open to either, but people in the medical profession work insane hours, especially in the early years. You might hardly ever see them.
On the plus side, there's more bling factor: "Yeah, my husband/wife is a doctor."
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The time will never be ‘just right’.
Start where you stand, work with whatever tools you may have at your command,
and better tools will be found as you go along.