it's true, bro, the private key is only for ourselves, never give it to anyone, because that is your heart.
we do not easily trust the people around us, because not necessarily they really can keep our secrets
Most of the time that is not the case though, criminals in the internet over targeting people and trying to steal their important data and private key is also one of them.
You can see that most of people who loses their coin is not handing away their privkey but got phished, people just need to be really aware about the importance of their private key