I agree about the ring neck species being difficult to keep in captivity.
I did some reading about the Brahminy blind snake. They seam to be hard to get to thrive in captivity as well. From reading several articles, the average length of time people have been successful to keep them alive is 6 months to a year. Guessing a year is typical in the wild. Not off the list but still shopping.
Thank you for the suggestion.