This video does a good job at explaining how the religion will ruin one's childhood. No friends in school. No playmates. No after-school events of any kind, unless required. No gifts (no, they don't make up for the lost Christmas and birthday gifts). They are not allowed to stay in the room if there is holiday music or other holiday events going on. Having to spend all the time in field circus. No memories of early childhood that stick out from anything else. No having Saturday mornings off to watch cartoons or to play.
This is what leads to stagnation later. They are not supposed to go to college, because Armageddon is going to come at any time and they need to be aggressively out in field circus to have a chance of surviving (and the "May" part still haunts them). What happens is that they get jobs washing windows and scrubbing toilets for pathetic pay. They cannot save anything because of the low wage (and, even if they did manage to have a surplus, they have to donate it into the Worldwide Pedophile Defense Fund). They grow old and destitute, usually with families that are God machines or no families at all. And, when they become useless, they are discarded.
I think every parent that is thinking of joining the religion should watch that video in its entirity. I think they will think twice before joining.