But look at the stable coins They are stable and have same aspects as Bitcoin has, so Can anyone explain to me who or why Will need Bitcoin?
People who value decentralization. The only similar aspects of Bitcoin and stable coins are that they're digital, and not much else. Stable coins are only stable because there's a centralized party keeping it that way.
I would also argue that it's much more likely for you to lose your money on stable coins than Bitcoin, considering they have a central point of failure. Even the biggest stable coin, Tether, has lost its peg a couple of times, and is currently under fire from regulators. They're much more vulnerable to outside interference, and are therefore much likelier to die a premature death than actual decentralized cryptos.
There's a reason why stablecoins are only ever used for trading cryptos, and that's because that's all they're practical for. If you absolutely want to keep your money stable in terms of fiat pairs, use fiat. If you want money that's discrete from the traditional economic system, use Bitcoin.
