Some jellyfish are really pretty, wobbling and floating in the waters but I wouldn't dare to touch them. Think most have dangerous tentacles. I know of people who got stung by them before. The entire wrist was wrapped by their tentacles. Quite a horrid experience. Have you tried eating them? They have them for Lunar New Year. Quite rubbery.
I never touched one. At times the beach is full of them after eb. No idea why. There are so many species and colours. It is such a strange creature, close to SF in nature.
I like them in a tank and the wild, but not on my plate. I also never tried lobster, crab, no oyster island sea devil either.