Our second oldest turned 18 earlier this month, so we are now down to 2 remaining at home. The 3rd child turns 17 next month. He has said he plans on staying at home until he is 18 (and finishes school and achieves his homeschooling diploma), but Texas is weird in that it allows a 17 year old to freely leave home, while still keeping the parents responsible. This makes for a really bad situation.
Society needs to get over this kick that teens are always right. Teens that come with Reactive Attachment Disorder (RAD) definitely do not fit the "good teen" mold, though they may seem to at first. Be skeptical the next time you hear of a wicked, evil parent. Such do exist, but these children have a way of twisting things to make it seem the opposite of what it really is. And many do-gooders end up doing more harm, though they rarely deal with the long-term consequences of their stupidity.
Nevertheless, we only have 2 more to focus on, for about the next 2 and a half years. Then we can deal with everyone as adults. We may or may not be alone, but at least our responsibility will end.