well, you wouldn't call what you'd be doing "unschooling", but you certainly can have an open unschooly attitude to things, and that will likely go a long way. I like to think that I did this somewhat with my daughter. She was in school (a Catholic school, no less) until Grade 8, when she got too sick to continue. It was a kick in the pants I really needed to re-arrange my life, but in the meantime, I didn't take school too seriously. We even gave her the option of going to a "free school" in our area when she hit that rough patch in Grade 4, but she decided to continue with school at that time.
But as SilverFish noted, it's when your child is struggling that you'll be faced with a quandary. DD was (and is again) a great student, and school comes easily to her. But when she got ill (and it's one of those vague chronic fatigue sort of things), school no longer worked for her, and we had to re-arrange our lives to get her out. Sadly, because her dad is a very mainstream high school science teacher (and his family are also all teachers), unschooling was not on the table at all, so went through our government's "distributed learning" school. Since she had to go through the hoops anyway, she's been taking more and more courses at the local high school (from grade 10 on you can pick and choose), especially those that just didn't work for her in online or correspondence formats. Now in Grade 11, she's taking 7 courses in a bricks-and-mortar school (mostly fun stuff like ballroom dancing and theatre and band) and 4 more online. It's a big course load, but she's an ambitious girl. This month she's writing a novel for National Novel Writing Month. She also sings in an adult competitive barbershop chorus with me.
How does this relate to unschooling... well, mostly in my attitude. School is an option, one place of many where she can learn things. For example, I respect her interest in Anime, Manga and all things Japanese, because I can see that she gets a LOT out of it - she writes, and edits other people's stories, and she sews costumes, and creates accessories, and has even learned a significant amount of the language from Japanese pop music and movies. Oh, and makes friends (very important for my introverted little girl).
(I'm also relaxed unschooling with DS, so I'm learning as I go!)
Lori : mum to Emily (nov94) and Calvin (jul 03), : and : married to : Wes