This is a great set of instructions, and I think they'd be really helpful and supportive for someone struggling with how to tell their family.
For me, there was never one 'moment' when I 'came out' as a skeptic to my family. It's been a long, gradual process. As a child, I attended a Catholic church with family members, and in my teens I stopped going, and dabbled in a bunch of different stuff, read a ton of philosophy, researched world religions, and generally just tried to open up my mind a little more, a bit at a time. I quite often felt strongly pulled in two different directions. Christianity appealed to me mostly for sentimental reasons -- it was what I'd been used to for so long, and in many ways, it was a comfort and source of strength. On the other hand, my naturally skeptical side often kicked in, and I was asking all kinds of questions of myself and others. As I entered university, I still attended Mass or Protestant services from time to time (I wasn't devoutly loyal to either camp), but I started reading more and more about science, philosophy, history, etc... and I found myself getting pulled more strongly in a secular direction.
While all this was going on, as I learned new ideas, talked with folks and came to new conclusions, I shared those concerns and ideas with both my mom and a few close friends, etc. As I said, it was gradual. Eventually, I realized I was comfortable enough to be essentially where I remain today: I don't know if a Creator exists or not, but I don't care for the way the idea of God has been used and largely abused by almost all of the world's religions, Christianity included. The arguments and apologetics for faith made less sense to me, and I saw the way people spoke, claiming to know the mind of this God, although almost all of them disagreed on a lot of the fundamental aspects, although all claimed the same basic faith. I'm sick and tired of churches pitting themselves against one another, and of them pitting themselves collectively against everyone who disagrees with them. I'd no longer feel comfortable belonging to any of them. As someone in another thread here said, God needs a much better PR team.
I've shared these views, along the way, with the people who are close to me. They understand my perspective, and for the most part, my family's respectfully disagreed with me, but they've let me think whatever I want to, without giving me much grief about it. My grandpa sometimes jokes that I belong to the "round church" (you run around and around in circles so the devil can't catch you, lol) but overall... I'm profoundly aware that I've gotten off VERY lightly, in terms of how little my immediate family was bothered by my telling them about my beliefs.
My dad, on the other hand, was another story. He hasn't been a big part of my life for years, and he moved far away with his second wife... but ever since I've clued him in on my doubts and ideas (he's a fundie Protestant), he's just given up on talking much. If we talk once every month or two, the conversation's strained, it never lasts long, and from what he's told me, he believes I've screwed up my life irreparably with my 'heavenly Father' by my ideas and choices -- which is ironic, considering my earthly father bailed on us when I was a kid, LOL.
So, it is what it is. I'm thankful to have a close, loving immediate family who I get along very well with, and if one person out of the bunch wants to phase themselves out of my and his grand daughter's life... that's his choice. I'd rather live with integrity, and try to teach her to also.