You can still use and combine some decentralized exchanges, social media platforms ,mixers, even some gambling sites and P2P in order to get the crypto without doing the KYC but the process will be complex and not easily understood by a layman or the one who is new in the crypto.
There is pressure from the governments to make the KYC mandatory and hence the famous centralized exchanges won't allow you to buy bitcoin or make P2P transactions without KYC.
Yeah i think we should doing KYC in case of just a verification that we are not doing crime on the platform or the market because we know there are a lot of crypto hackers who could steal the exchange's money or any other platform, they asked to do the KYC at least they will know who did the action even it will not solve the case.
Also if we want countries are regulating the crypto, i think KYC is mandatory also.
But anyway we have choices, there are a lot of non KYC platform out there that we could use freely