Personally I don’t see the point of hardcore, but then I don’t like the idea of losing everything. I suppose some people get an extra thrill that it could happen, or they want to see how many days they can make it. But you could also just play on Hard mode and quit that world if you die, or you could give yourself say 3 lives instead of one. The good thing about Minecraft is you can set whatever rules and challenges you want for yourself, it’s all up to you. :)