Sanji vs. Land
One of my favorite Sanji headcanon's is that he has the best sea legs of the crew, tied w/ Jimbei after he joins. But he also absolutely has the WORST land legs when they make landfall.
I think this because, prior to Kamabakka, the longest period he spent on actual land seems to be starving on a rock with Zeff.
I totally buy that Germa likely had some sort of stabilizing tech on their snails, definitely in medical and engineering areas. You need a measure of stability in your evil laboratory.
But any ocean-going vessel does need to actually move with the sea. Otherwise, it won't move at all. So, I think other areas were less stabilized.
Thus, Sanji went from weird snails that swim the seas, to cruise ship, to trauma rock, to a restaurant ship before joining the Straw Hats. Moving on a ship likely feels more natural to him than on land.
I think he has trained himself to adjust pretty quickly, as a necessity, and also because the Mosshead definitely would call it out. But even still, his first few steps on any island are not as graceful as his usual stride.
Okay, ramble done.
