If you want to use your bank account to withdraw funds from crypto exchange, then it is best to go in a bank and ask what is their attitude towards cryptocurrency. You should do the same thing with crypto exchange, they also can close your account if for some reason don't want to do business with your bank. It's pretty slippery terrain, every move should be carefully planned.
If you have some local store in your country that accepts crypto, this can be good way to exchange crypto to fiat ( if such trade is extra tax-free). Also you can use crypto ATMs, or post in your local board that you sell crypto. Face to face is always risky trading, but Bitcoin for fiat without intermediaries is the best way to avoid high fees and possible taxes.