Excuse the late reply. I don't have numbers for you, but they still can't be that big. Bitcoin is perhaps fanatically adopted by some, and they may bring their friends in, but it has to still be a very very small percentage of total investments. 50 percent of Korean personal investments going into bitcoin seems, thankfully, impossible.

Btw the gov't here has outlawed bitcoin derivatives including futures, and classifies bitcoin as a speculative asset, not a currency or means of exchange. I can easily imagine bitcoin being banned here, if there is a collapse and people get burned.

At the same time the gov't is supportive of new technologies and seeders interested in blockchains.