I have mixed feelings on this one.
On one side, it's pretty silly to totally deny gender, because (except in rare cases) it's a basic fact and research has shown over and over that males & females are just different from each other, from birth and even before.
On the other side, I'm absolutely against pushing kids into any pre-set gender roles.
I have three boys, and I never tried to "hide" that they are boys, from themselves or anyone else. At the same time, I've tried to let them choose what they want to do, wear, etc. regardless of whether it's traditionally male or female. There have definitely been times when I've told them, "I'm totally fine with that, but if you wear it to school you might get teased about it" and then left it up to them. ALL three of them have gravitated to traditionally "boy" things ~90% of the time, from a very early age - other kids of course may be different. I never EVER felt pushed towards "traditionally female" pursuits, and yet that's where most of my interests lie.
At my sons' preschools, there has always been a definite difference between what the boys generally choose to play and what the girls generally choose to play. Granted, by preschool age there's been a fair amount of conditioning, but even though all kids are encouraged to participate in whatever activities they want to -- the boys will play house for a little while and then go back to running around, while the girls will run around for a little while and then go back to playing house (broad generalization & of course there are exceptions, but you get the idea).
As for un-schooling and home schooling, they can work very very well in the younger grades but as kids get older, they're less effective unless the parent doing the teaching is great at all subjects or has some other resource person for the areas they're weak in. I remember my mom having some trouble with teaching my brother social studies when he was being home schooled in 6th grade; I think she was missing some of the teacher's manuals or something and the questions were weird so she wasn't quite sure what was being asked. (We used textbooks etc. from the closest public schools.)
As for public schools....I enjoyed 5th grade, and I guess 12th grade wasn't so bad.
In between, though, even though the schools weren't "bad" and (most of) the teachers weren't awful, I would rather have been almost anywhere else in the world. (College was great, though.)
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"[English] not only borrows words from other languages; it has on occasion chased other languages down dark alley-ways, clubbed them unconscious and rifled their pockets for new vocabulary."
-James Nicoll, can.general, March 21, 1992