Can someone still develop the habit of gambling and become an addict even though no one around gambles?
Humans are social being, if others in the society are not around gambling then I think gambling addiction will not survive for long. And gambling comes from thousands of years ago, so I think some changes may come as a result of the change in environment, but it will not be possible to turn gambling off. If anyone wanna know the history of gambling please check this topic
https://bitcointalk.org/index.php?topic=5405436.0