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?
If there is indeed no exchange about cryptocurrency in your country then at least that step must be done first before you cash it. But indeed, there are still many altcoins that are not available to be exchanged directly to fiat even though it is an exchange that supports currencies in your country and if that happens then selling it to BTC was the process.