i don't really know even jean grey has a real hard time doing so- i am almost positive it is cause she has such a strong will she is almost impossible to mind control and cause there is electrical interference in her brain so it scrambles incoming telepathy- she can let them in if she wants to though
hehe...that would get annoying....being empathically linked...think about how much control u would need...eveytime you were pissed...it started to storm and dark clouds everywhere....like if she was at the beach....havin a great time, all sunny, then someone destroys her sandcastle....all of a sudden it isnt such a good day to be at the beach.... ❌