You would get everything when you will read their terms & conditions. Its quite important to read when you are going to register on an exchange. Actually KYC look like become mandatory on most of centralized exchanges, and without that they are making trouble with users fund. Some of exchange totally off withdrawal without KYC like Bittrex. Although I am not encourage to submit KYC but no way to avoid it if want to use reputed exchange.

There is few exchange who doesn't required KYC for small withdrawal like Binace. Perhaps we might use that kind of exchange if we like to avoid KYC problem.