Lucid dreaming to me seems more like somthinfg that your body will allow providing you put the effort towards it. It just takes a certan amount of awareness.
OBE'S and a sixth sense on the other hand seems a little more in the realm of the possibility that it is somthing you may aquire through genes.
In my family the OBE'S have skipped three generations now. That I am aware of. They came somewhat naturally to them where the others in the family have not been in accord with OBE"S.
I do not think anyone should rule out the possibility that they can do anything though!