Fortunately we never had a problem with ours becoming adults. That too has nothing really to do with where they live. I know plenty who left home post high school or college and certainly didn’t become adults any of us would be proud of (drug abuse, lack of good jobs, lack of paying bills among other things).
I think peers mean a lot more than where one lives TBH (esp when they change from who they were). Otherwise, I think it goes deeper into one’s personality many times.