Does walking on pavement hurt horses?

We have horse carriages for tourists but instead of a NYC-style ride in the park, they toodle around in traffic (they were banned from the parks).

I would think that iron shoes on pavement would lead to joint problems. I had to stop running from knee pain, and I had comfy running shoes.

I don’t like seeing the poor horses plodding among the cars. I don’t see the attraction for passengers, either. But then again, I don’t get lots of popular things.