Why are people still allowed to hire you if you block them? That doesn't really make sense and why aren't tuts able to drop pups?
It doesn't really matter who your pupil is. You gain nothing from them. It is the pupil who gets the benefits of stats through tutors. So people are free to hire tutors and the tutor market is open for all.
Coz its a completely different game mechanic. If you want to keep your tuts then price them right. Over price them even. Its stupid how many people complain yet they have tuts insanely under priced. Your pupil does not effect your game in any way. If you dont like them then just dont talk to them. Its really not that hard
That is like asking why a television can't choose not to be rented by someone. You are property and cannot have preferences.
You say that as if its not a thing. My mums tv chooses when anyone can watch it. Sometimes it will work perfectly fine. Other times it just says no and wont show anything. Tbh the tv here is starting to go that way as well