What if McDonald's suddenly became vegan?

I have this fantasy that if all the McDonald's suddenly went vegan, no one would really notice the difference, or complain. No one goes to McDonald's to eat healthy food anyway, so as long as it was still fast, cheap and tasted good, I believe it wouldn't matter.

Now, I'm not examining the issues surrounding "fast food" and what that implies about our society's priorities; I'm only conjuring up a scenario based on our current habits. And recognizing that being vegan isn't really a matter of difficulty for a society, but only a matter of us currently having a fast-food, animal-product dominated, society.

I've often presented the question to others who still choose to eat animals and animal products about what they would do if suddenly there were no animals to eat. The answer has always been that they would no longer eat them - or they offer no answer at all. But the answer has yet to be "I wouldn't survive." (I imagine that would be a pretty ridiculous answer when the person asking the question is a thriving vegan!) Vegans are living proof that you don't need to eat animals and their byproducts to survive.

We all know the phenomenon where someone tastes something and declares it delicious, only to retract their assessment once it's revealed to them it is something they previously declared unappetizing. Some get angry, believing they have been deceived. But some realize through this exercise how their perceptions had been dictating their food choices, rather than actual taste. And I'm sure these scenarios would play out in a sudden McDonald's conversion. Now I know it's a stretch that you could replicate all the flavors in McDonald's products perfectly in vegan forms, but I imagine if they became the only options - either you eat this or stop eating at McDonald's - people would most likely be unwilling to give up the cheap convenience due to a lack of animal parts, if it was at least tasty.

At least that's what I choose to believe. That if there was no other choice, society would have no problem being vegan.