Binance submit KYC if you want to break limit withdrawal one day more than 2 BTC, but if your withdrawal less 2 btc per day is not worry for submit KYC or not, you can't upload your kyc if your withdrawal less 2 btc per day.
That's their basic requirement, and I think lots of traders are still not verified but every trader has to weigh things properly as non verified account are non existent account when there's a legal matters that will come up in the long run. For example when the site is bankcrupt and it's been taken over by a government agency or a 3rd party, they will only entertain those who have successfully verified their accounts.