I've lived in the Middle East for a long time. First I worked as airstewardess, then I taught English as a Foreign language. A lot has changed in fifteen years, but some things stay the same -
Tonight I had a riding lesson, it took up half the arena. In the other half was a family - mum, dad and son were having a group lesson together. The family lesson finished and mum carefully rode her horse round the perimeter of the arena to get to the gate. Dad and his son rode their horses straight through my jumping lesson, I had to abort take off twice, the first time because they were in front of the jump, the second time because they were on my landing pad.
My (male) instructor did not ask them to move away. I continued to canter round and round my half of the arena until they were gone. Then I was able to jump.