Pessoa gag bits and people using them even after they know how they work
People going barefoot to ''sae'' the horse but still think it's ok for said horse to be lame for a couple of years before the feet has ''toughened up'' enough..Especially if the horse is old and has bee sgoed its whole life. (I'm for barefoot but not to whatever cost it takes)
People thinking their ways are the only right ones. (I have opinions but I try to respect others too especially if they'veput some mind effort thinking about it)
Cushionlike treeless saddles that doesnt do their job (not good treeless saddles tho)
People chaning bits instead of fixing the problem, if any problem is reason to the change.
People who say standardbreds are worthless riding horses
Uh...I can't sort the rest out but there's plenty of them:P