The reason why bitcoin still exist along with its competitor which better than it whether faster or cheaper. I think due to bitcoin is the first crypto and people more trust on it. On the other hand, not all people here use bitcoin as a payment option but as an investment tool. I personally use altcoin for purchasing something, bitcoin's fee is just too high I'm holding them like a gold.
Bitcoin is always ahead than the fiat currencies buddy, all you need to do is with the bitcoin is can do more than dollar or pounds. These fiat cashes are staying in the marketplace with the help of Rothschild family only. If they are killed or left away all the people will be find the independent usage from the bitcoin or altcoins/
Then I want to say you guys think wherever you guys are paying fees all the people while accessing debit cards, online payment, bank transaction fees and etc. If you compare all these things with the bitcoin's transaction fees it is 10 times better than fiat cash.