First mainstream fast food restaurant to go back on this being a bad idea and offering “non vegetarian fries” is going to financially obliterate restaurants chasing the vegan meme.

Once you’ve tasted what you’ve been missing with tallow and dripping fries the rest taste like trash.

So what you're saying is that big corporations run by some of the greediest people on the planet have somehow failed to recognize this? Or do you just think they are using plant based oils out of the goodness of their hearts?

Plant based oils ARE the chase to the bottom you're implying about.

Shipping one inferior product so make sure vegetarians/vegans order your fries at the expense of taste for everyone.

My suggestion requires integrity/vision to know that either having to ship two products or forfeit the sales of a group of people for the betterment of the product will fill a gap in the market.

Chick-fil-a fries in peanut oil, although I bet it would be awesome if they fried in animal fats.

I expect it’s because they fry in the same oil as the chicken.

One of the reasons McDonald's fries used to be so loved was because they were fried in beef tallow. That went away in the 80s/90s, they're just not the same now.