Horses r huge and unpredictable. Its common sense to ride carefully and cautiously around them. Plus theyre fantastic beasts. Wearers of polite vests on bikes however should be hung, drawn and quartered.
Have you seen People.....id say having Polite on a yellow vest is about as much use and assistance as sticking a child on board badge in your back window!
Makes sense for huge, unpredictable creatures to be excluded from the roads. Safety first. Quite right, booty! Mind you, polite vests on equestrians look quite fetching ... cos, you know ... *stupid reasons*.