FateDevilAce
As far as I understood(anime), only seawater was a weakness for fruit consumers, since seawater contains energy / Sea Stone particles🤔
Sea-weakness only works as long as the water past above the knees . If you notice the moment aokiji leg regenerate with ice after water below his knees . But before that , his leg doesn't regenerate
KoRSito:if aokiji couldn't use the power of the devil fruit. how he walked ?. aokiji has a leg made of ice🤔image
Honestly, I rather prefer for devil fruits to appear at random all over the world after the death of their previous user, and also not instantly, etc. Otherwise, they are ridiculously easy to farm. The world gov. most likely knows about this. Doffy as well, and all the Black Market people. If I were some ambitious elite, I would hunt down people with Devil Fruits, bring them to a location with fruit trees bearing fruits that are similar to the devil fruit, and then kill the captive and farm the fruit, etc.