What is a term for someone who has never left their home region?
Specifically, someone who has never experienced other places? A college professor once used the term "parochial" in this context. "You should earn your doctorate from another graduate college, then you will not be so parochial in your studies".
Solution 1:
Provincial carries a connotation of not having left one's home town or province. It is a synonym to parochial not having left one's own parish.
I originally had inbred listed here. I believed the reasoning self-explanatory, but, it was causing too much confusion for people. I suggested this because of the example given of going elsewhere for further schooling.
Institutionally speaking, we describe programs where everyone was trained in the same place as being inbred. It is not usually applied to the individuals themselves. But, it can be applied to their ideas.
The terminology refers to the breeding of ideas without outside or fresh input. It is metaphorical to consanguinity where an isolated population can become inbred over generations of interbreeding.
Solution 2:
Depending on whether it's AmE or BE, you're probably looking for
homebody
or
homebird
Meaning from Oxford Dictionaries:
NOUN (plural homebodies)
• informal , chiefly North American A person who likes to stay at home, especially one who is perceived as unadventurous: since his marriage, Brett has become a homebody
Solution 3:
More specific than just home region, a townie is someone who's grown up, went to school, and still lives all in the same town (or nearby town). Someone who is "from" that town for their entire life.
Solution 4:
The best I can come up with is "untravelled". It's not exactly right as it can also mean you haven't travelled much (as opposed to not at all). I can't think of an English word that literally means you haven't left your home region at all.
Solution 5:
How about some words with positive connotations? "Rooted", "established", "settled", "well-set".