Firstly, it provides transparency and a history for each transaction, which is not possible with most altcoins.
It's actually possible for like 99% of altcoins as most altcoins are tokens on public blockchains(Ethereum, Solana, BNB, etc); only a very small minority are 'privacy' coins, and only some of those 'privacy' coins are actually private.
There are several reasons why Bitcoin is likely to maintain its position as the leading cryptocurrency:
1. First-mover advantage: Bitcoin was the first cryptocurrency to be created, and it has been around for over a decade. This means that it has had more time to establish itself and build a loyal user base.
2. Strong brand recognition: Bitcoin is the most well-known cryptocurrency, with high brand recognition and a strong community of supporters. This makes it more likely to be adopted by new users and businesses, giving it an advantage over other cryptocurrencies.
3. Large network effect: Bitcoin has a large and active network of users, developers, and miners, which helps to ensure its security and stability. The larger the network, the more difficult it is for a new cryptocurrency to compete.
4. Decentralization: Bitcoin is a decentralized cryptocurrency, meaning that it operates without a central authority or intermediary. This makes it more resistant to censorship and control by governments or other centralized entities, giving it an advantage over centralized cryptocurrencies.
However, it's important to note that the cryptocurrency market is highly volatile and constantly evolving. Other cryptocurrencies may emerge that offer new features or advantages over Bitcoin, and the market could shift in unexpected ways. As with any investment, it's important to do your own research and consult with a financial advisor before making any decisions.