Unfortunately, it's illegal to buy property in the EU with BTC. To those who are not familiar with this business, it's also illegal to pay in a foreign currency like the US dollar, or to pay cash save in one country. Even if the buyer accepts BTC, the transaction must be in the currency which is legal tender in the country, and the price shall be written in the contract. Sorry, but there's no choice.
Good to know how it's done in EU. But this cannot be taken as standards for othe countries. In my country bitcoin is not a legal tender but people still trade it. But I also thin there might be problems in reconciling the price to fiat for documentation. This is actually a problem easy to solve, just convert your btc to fiat and buy your property.
Bitcoin is not generally acceptable that is why every countries have there own law that is backing them up. If Bitcoin is acceptable in your country for trades then that is fine but that are some places that the use of crypto is purely ban while we areas, they are strictly regulated because the government is keeping an eye on how frequent and what sort people are using crypto for.
Every country's government is very careful about bitcoin and cryptocurrency. This is because there are so many opportunities in the crypto to cheat government, to fraud, steal and lots more. This crimes differ from country to country and that is why laws and regulations about cryptocurrency is not universal.
Maybe in years coming if there is a need for Bitcoin to become a general currency then the aim of Satoshi Nakamoto will be accomplished but there is still fear that Bitcoin might become regulated.
On the contrary, the vision of Satoshi is not to make bitcoin a general currency according to you. His goal was to create a decentralized currency which will serve as a alternative to the centralized fiat system. Counting my this, Satoshi's goal has been met and even exceeded.