Have you… not seen how bored MMO players operate? People run and jump around aimlessly ALL THE TIME. The fact that THEY spent 5 million gold on a mount does not entitle you to them rooting themselves to the ground indefinitely.
For anything that you aren’t immediately able to knock out in about 5 seconds or less, either get your own mount or head to the permanent NPCs so you aren’t interrupted. It’ll just save you headache.
No one buys these mounts to provide a service, and that’s not being selfish.