30.4% percent? It's crazy high and that means you could talk about cryptocurrency to stranger as conversation starter. Although it's a shame the article doesn't mention how they obtain the number/percentage, which makes me question it's accuracy.
When you look at the fact that, apart from Ukraine, there is not a single other country from Europe that has some of the countries with the highest purchasing power and, accordingly, they certainly have a significant share of people who own cryptocurrencies. This is obviously a very limited survey conducted by a payment processor that apparently generates clients from those countries.
It is always interesting to see China in the top 10 countries when it comes to cryptocurrencies, considering that they banned them some 7-8 years ago. However, for me, a much more significant research would be to get data on where, for example, Bitcoin is mostly used as a cryptocurrency, and not as an investment.