I'm guessing if every other crypto exchanges will follow this, binance for example
Binance already requires KYC docs as far as I know, at least for US-based customers. And yes, you've obviously realized what I've suspected for a long time now, i.e., that these centralized exchanges are starting to become regulated by the governments of whatever countries they're operating in, and they're all going to require KYC from their customers in the future.
I'm expecting exchanges like Yobit, Livecoin, and those "instant exchanges" like Changelly and others to start requiring personal info from their customers. I have no idea when it's going to happen, but there's no way the wild west days of exchanges being anonymous is going to last much longer. It sucks, but I understand why it's already started happening.
Governments will say that they're doing this because of money laundering or whatever, but the fact is that they don't want their citizens to have any sort of economic freedom. So yep, it's going to be a must in the (probably) near future.