If we want to turn altcoin to cash, will we need to sell it for BTC first, and then send the BTC to service for conversion to USD/EURO before finally to bank?
Crypto banking projects aim to solve the mentioned case with shipping worldwide crypto to cash bank cards but the limitations by the payment organizations don't let them do their job properly. If you bought the token of X project then sending the intended amount of the crypto to the banking application will let you spend your money with various stores that have Visa-Mastercard logo on the post terminal.
If we want to turn altcoin to cash, will we need to sell it for BTC first, and then send the BTC to service for conversion to USD/EURO before finally to bank?
I would suggest to find an alternate pair in exchanges for your altcoins in ETH, XRP, etc other than BTC since transaction fee is way very
low as compared to BTC's transaction fee and transaction speed matters also, but of course this options all depends on what features
does your local exchanges have.
The alternative pairs are only limited to Altcoin/BTC and Altcoin/ETH combinations. The speed matters in trading, stable coins can be used for stabilizing the made profits instead of waiting 3 days for bank transfer by any crypto exchange. XRP pairs are higher than EOS pairs, only specific exchanges have this kind of offers.