Here's the thing: These devout JW parents want their kids to grow up JW and remain JW throughout their lives. They sincerely believe is the best way for their children to live their lives.
DY:
If these JW parents are as "devout" as they say, they wouldn't even have children to begin with "deep into the conclusion of the system of things" when "armageddon could come at any time".
LRG