True believer JWs probably are not concerned about their children's futures, because the New System is around the corner and they won't ever get old enough to worry about it. They feel this way, even when they are surrounded by JWs who are facing financial hardship because they though they would not need to save for retirement.
My mother is like that, she did not prepare for old age because she was certain she would be living in the paradise Earth by now (heck, she expected it to arrive before the 1980s did). She is fortunate that her children took care of ourselves so that she gets to enjoy a much better life than she planned for. But she is not grateful. That is what the JW poison does to people.