The most popular reason is the ability to use bitcoins anywhere, anytime and in any quantity. When working with bitcoins, there is no limit, as there are no banking holidays, bureaucracy, because everything is controlled by the users of this currency. attractive concept
There are fewer commissions - this is another attractive concept by which people choose bitcoin as their currency. When receiving bitcoins, there are no commissions, and when sending bitcoins from your wallet the amount of commissions will depend on how quickly you want to check and make a transaction.
But the most attractive is not low commissions, but the fact that on all transactions, regardless of the amount of bitcoins that you send, the same amount of commissions is set. You can send at least 200,000 bitcoins, even 2, but the commission for the transaction will always be the same.