You can still buy on some exchanges that require not verification, certain amount of bitcoin can be bought on bitcoin atms without any verification needed. Only novice are the ones using wallets and exchanges that require verification.
Yes maybe we can buy bitcoin through an ATM with Fiat without identity or buy with a DEX exchange. However, not all can do this in several countries. Including in my country, to withdraw from crypto to fiat, exchange applies KYC at any value. This then makes not all who trade with bitcoin can maintain full privacy. We all need privacy and maybe lot of crypto user
don't want to do KYC, but when it comes to dealing with the government, we have to do anything. Except in countries that accept bitcoin not only as commodity but legal as currency, full privacy can be happened.