If you were born into it and spent the next 20 or 30 year having your head filled with the crap they teach you may have a little difficulty moving on.
If one day you wake up to the reality that it is not the truth but your whole family still believes it it you may be a bit of a problem just moving on.
If you aren't a jw but your spouse, child or parents have joined their ranks and your life is being turned upside down and inside out you may need just a little bit of support to get you through it.
People come here for very complex reasons. Leaving the Watchtower isn't like buying a ticket to a baseball game and deciding you don't like baseball and never going again. Once the Watchtower is in your life no matter how got there it is just about impossible get it out. It will continue sticking its insidious nose into your business years after you have moved on.