"Things like shaving our legs are not that big a deal. Things like who gets to rule the world and hog the material comfort are however. And they are part and parcel of the same thing."
They are and they aren't. Of course anyone should ask themselves why they shave their legs (or do other things) - if it's because they feel they have to rather because they want to, then it's maybe time to stop. But if the answer is "because I really want to", then that's cool and it doesn't matter much whether it's through patriarchal conditioning.
Thing is, I guess my background of having spent a large part of my teens and early twens in a subculture where both men and women wear make up, stockings and suspenders, sparkly things, jewellery, provocative clothes and hairdos which take absolutely ages to do up, which was all not overly accepted by society (and I guess in part we did it because of that, but also just because we liked the look) probably informs a lot of my outlook on especially questions of dresscode/shaving/makeup whatevs.
Most of the time I now wear little make up because i can't be arsed, but I still think, if it's what somebody likes doing, all the power to them. Ditto short skirts (can't really get away with the majority of my outfits from back then anymore because I've got 3 st to lose
Personally, I think it's more important to tackle coercion where it is felt, and teach girls and boys alike that they are free to like what they want, and to say "no" to things that they don't want. Pressure to conform to norms in sexuality affects men and women alike. By arguing with the overarching patriarchy concept, it comes across that it's a thing that only men do to only women, not humans to humans.
I know you don't want to do a disclaimer all the time, and I don't want this to come across as yeahbuttery, I guess I'm very much against a lot of the same things you are, but my idea of how it is best attacked is different.