There appears to be a double standard and rules ("guidelines" and "suggestions") that are applied differently from congregation to congregation. After 7 years of fading, Rocky was DF'd but I haven't been, although I am being shunned by family and congregation as if I were DF'd. We tried to lay low as long as possible because of the consequences (obligatory shunning by family members). But the brother who ran interference with the elders for us died suddenly so the elder(s) with a vendetta against Rocky were free to come after him, which they did. He was DF'd in June, no letter, no phone call. I learned of it through the family grapevine.
As for the children, we cold turkey stopped going to the meetings. Our children were 15 and 16 at the time. They were first hand observers of hypocrisy, double standards, and pharisaical elders. The oldest continued for a few months to drive herself to the KH, but was received coolly. It didn't take long for some heart to heart discussions to occur. Neither of our children have pursued a life with JWs.
Bottom line - there is no easy way to leave. It's much like the line in the song Hotel California: You can check out any time you like, but you can never leave!