This! Despite my LOVE of trying local foods, if I’m travelling for work or other situations where I’m not sure if my gut biome and the local cuisine are a match, I will definitely preference a chain like this until such time as I’ve got options should the local cuisine and my GI tract possibly have a disagreement.
If I go back to my teens, however, it was a big deal when my family would travel to other, faraway lands and see what their McD’s had that ours didn’t - the other effect of all that consistency was to make any variation of that consistency truly novel. “What? you can get a glass of wine with your burger in the EU? They put EGGS on burgers in Australia?!”. As an aside, it’s fun to see how far some things (like delicious yolkiness on burgers) have come in the last few decades 
