I started having some fun despite that though. I was disappointed right as I exited the Vault because there was no 'Do you want to enable Hardcore Mode?' checkbox. Not only did it not do that, it turned it down a notch. I was expecting Fallout 4 to turn it up a notch. Thought New Vegas' hardcore system was very interesting and fun (having to eat, drink, sleep). Here's my story of why I had to seek out mods for Fallout 4: loved Fallout 3.
