Bitcoin is one of hundreds and still may be thousands of crypto currencies on the internet. Crypto currency is a digital currency that uses cryptographic technology for security that makes it unable to be falsified. The price value of cryptocurrency is purely determined by market forces, namely the requests and offers of users of this technology
You're right, Bitcoin has grown in a way that can not be replaced. And really important attributes do not appear in other Altcoins. Bitcoin has resisted successful online coordination attacks. So for me and most people, Bitcoin has become so special.
Well Bitcoin is growing day by day by producing and creating new ideas for the next generation as an alternative currency for now , some countries are using it and giving importance to it, I hope in my country we can also use bitcoin or any digital currencies because it is more convenient than the others.