Beach Stroll With Riders

In the past, I have seen no more than two or three horses on this beach.
(eg  https://www.blipfoto.com/entry/2766455145821634875 )
Post covid, the local riding school seems to have expanded its operations and now it has become common to see six horses and riders on the local streets and beaches.  There were six this afternoon though only three appear in my blip.

Some of the locals are not too happy with this as they do not practice 'Poop and Scoop'.  Dog owners do, so why not horse owners?