I wouldn't take any promises you were made by Vault-Tec to heart. They don't care about you, or any of us, as anything more than test subjects. Luke...I'm sorry, but unless they went through the measures to protect your loved ones, or they found their own shelter, then...

[Then they're most likely dead. Or mutated if not that.]

Look I understand why you're dubious, but what's the alternative? Stay here in this digital dump as code? Vault-Tec could easily flip a switch and kill us, as contingency, the longer we stay. The outside can be rough, but it's living - with all the imperfections.