The remaining 32.9% who said they knew the concept of cryptocurrencies, were asked another question, in which they were asked, if they would be willing to accept cryptocurrencies as a method of payment?
32.9% of people who understand the concept of crypto might be one of the reasons for the low percentage of crypto, perhaps due to lack of knowledge about crypto currencies so they don't want to take risks with crypto currencies, and if we look at it now almost every country in Europe they prefer use cash for all their activities, from paying daily needs or electricity bills, maybe because they think that cryptocurrency is rather difficult if used as a method of daily payment compared to cash.