Oh. No, that I highly doubt. People will find some other use for them. I mean, you've always got racing, equestrian sports... There'll be fewer of them, sure, but they shouldn't be in danger of extinction or anything.

[He might be unconsciously going off future spoilers there BUT SHHH]

But just think - Have you ever been to New York, Sam? Or any big city, really. Now imagine them not smelling like horse manure. That alone makes the whole thing worth it.