In my country, the Philippines, crypto owners are urged to declare their crypto capital gains for annual tax filing. This means that we are urged to pay taxes, and I don't think this is reasonable enough since crypto was not yet considered a legal tender.
Yes, not only in your country but in most countries it's now needed to declare their crypto gains for annual tax. The centralized system doesn't want anyone to live without paying taxes, however, I heard that in UAE there's no tax on crypto and that's why most crypto lovers move to that country.