Its complete bullshit that the JW/WT religion teaches that when a person leaves the religion they will start dabbling in immoral practices sleeping around getting into drugs ,joining the occult and becoming involved in whatever else the religion forbids .
None of this ever happens .OK maybe one or two people that would have done it anyway while still being a Jehovah`s Witness.
While I think of it their are/were many indulging in those practices while still being a member of the religion ,they were just leading double lives and never got found out.