It is absolutely not as simple as clear mechincal fact. See for example the rat park experiment [1]. There is also the case of huge numbers of people addicted t

It is absolutely not as simple as clear mechincal fact. See for example the rat park experiment [1]. There is also the case of huge numbers of people addicted to morphine during the Vietnam War, who upon arriving back home to families and support networks and away from horrors of war were able to kick the habit quickly and without difficulty. [1] https://en.m.wikipedia.org/wiki/Rat_Park https://en.m.wikipedia.org/wiki/Rat_Park