I seem to be with you on some of your ideas but we stray a lot when it comes to economics. (Although we do agree somewhat on the velocity of money, I would disagree on how to encourage it.) Please do not take anything I post here as more than the pleasant discourse I intend it to be. I am not trying to belittle your views or ideas, but hoping for a mutually beneficial dialogue.
I think seasteads will start out with lots of different types of governments, but I think that only the ones that have a smaller governments will succeed without a huge sources of outside funding. The fact is that a seastead isn’t going to be any more accepting than other countries are now of new citizens. You will be expected to show up being able to prove that you can support yourself. Therefore everyone will at least start at an equal footing, and it’s up to them what they do from there.
I would also like a gold backed currency, but there are issues there as well. If your seastead decides to store the gold in a vault on the seastead, you are inviting others to try and test your defenses. If you store it in a vault in another country, it can easily be appropriated by that country. This has happened more than a few times in history. The US gold reserve act of 1934, (started by FDR btw), the bail-in laws in Cyprus, and the exchange controls proposed recently in the EU are examples. If you have any negotiating with that country at all, you will do so knowing that they have your gold reserves locked in their vaults. I do think that barter will be alive and well on a seastead though.
I won’t pounce on FDR too much. I’ve already brought up that he is responsible for us going off a gold backed currency to begin with. I just want to add that he started our never ending debasement of currency and the larger bust/boom cycles that came with it.
The USDA’s duality still exists, but you are correct about it’s priority. Corruption tends to do that. It’s why lobbyists from Monsanto and Goldman Sachs pay top dollar to get one of their own on the presidential cabinet. If you create a government office, a corporate lobbyist will fill it for you.
As far as teaching your children, the answer is you are in charge of teaching them. There are plenty of great resources out there like Khan academy and MIT open source, but if you make the mistake of allowing anyone else to be in charge of that, you allow them to be victimized well into adulthood.
Taxation is theft by government force and it will have to be low on a seastead for practical reasons. You can tax me to the point that I tolerate it enough not to float away. Your only way to stop me from floating away is to imprison me. The “old money” scenario sounds great until you apply it to the family farm. Farmers are land and equipment rich and money poor. So when you tax that farmer’s estate for the privilege of dying, you now force that family to sell off a part of their farm to pay taxes again on what they have already paid taxes on in the past. Seasteaders are going to have a majority of their wealth tied up in their self sufficiency and if you try to apply an estate tax to that you’ll do the same and end their existence. You can’t sell only part of a seastead platform. It’s an all or nothing proposition.
The UAE is nothing like Libertarianism, it is a favorite brought up by some left leaning orgs though along with Somalia. Both places are on the opposite end of the scale when it comes to human rights though. (usually ignored by those groups to falsely prove their point) About the closest you are going to come today is maybe New Zealand, but even that is like comparing an apple to a pear.
I understand what you envision, but I do not think it can ever happen that way. You’ll have to show up on a seastead ready and able to support yourself. You’ll need to grow your own food, make your own power, and fix your own leaks. Nobody is going to create a seastead for the purpose of taking care of you. They may create one that allows you to take care of yourself. Isn’t that what we all want in the first place?