Bitcoin has PoW
It is big controversy for a long time, if a coin makes PoW or PoS, like it was for Ethereum [ETH]. Not for Bitcoin because Bitcoin developers have decided PoW is best because of security. From what Experts have said so far, PoW is very hard or almost impossible to compromise instead of PoS, where more attack vectors can be found. Like Corona, we should trust majority of experts who have education and experience in an issue. Satoshi implemented PoW not PoS because Satoshi knew. He was very experienced and called it right.
PoS can be abused by rich stakers and makes a project centralized in many ways like premined coins and devs can create much influence by staking a large amount of PoS coins. PoW is not having such issues.
ants to build a safe coin.
It is our duty to select a safe coin instead of an unsafe hype coin.
This is right, it's been a long discussion about it before being a PoW. And it was a hot debated that it should be turned into PoS. But the security concern is huge for it and it's best being left as PoW. The main reason too is that many of the altcoins before have premined and unlike Bitcoin being a PoW, there is no premine that's being held by developers and they've also advertised their projects as PoW but, they've tricked people because they've already some supply and that's why Bitcoin is better.