You can still die, just not from hunger/thirst.
And you have to hide it, or else governments around the world are gonna lock you to a blacksite and experiment on you. (I mean, you are essentially a weird mutant / supernatual being, governments be paranoid)
Oh, then I’m defective because all I want to do is bake and nap with a cat. Are you sure I’m a terminator and not like…a cast off terminator that they sent back purely to get rid of me??