If you go to a McDonalds you know exactly what you’ll get
A poorly put together “meal” that very likely has been sitting under a heater for a length of time unless you went there when it was busy. And if it was busy, the chance for mistake is high and it’s going to be sloppily put together. What so you can save a few minutes? Most places do take-away… so you call them, place an order, pick it up. No sitting 10-20 minutes in drive-thru. And you got more food, better food, for the exact same price and you probably got it faster on take-out. And dining in… you wait a few minutes… how do you not have a few minutes?
And who actually cares about familiarity? That’s either saying, you go to that one place way to much and your food choices are predictable and boring. Or you’re highly susceptible to advertising. And really, those two things aren’t mutually exclusive.