Why can't I convert btc to Euro directly in the casino? This is not convenient, because some of the slots I can't play using btc.
Which slots?
What I know the slot work how they deducted the balance even you only have crypto pair, the bet will be made by USD by you will get deducted with the cryptocurrency you are using let's say Bitcoin then your bitcoin will deducted with the estimation you amount you are putting for the bets.
So, not really convert the crypto into USD pair.