My dad has fairly high expectations, but not in the sense that he expects me to achieve a particular goal or status, it's mostly that he doesn't want me to waste my potential. I inherited the "smart but lazy" gene from him, and I think that he worries that I will go through life continuously thinking that I can succeed by doing the least amount of work possible... although it seems to be working so far!
Anyways, I think deep down my dad is pleased even though he likes to bug me sometimes. He's okay with the fact that I picked a random and potentially useless degree, as long as it's something that I enjoy and stick with.
My mom on the other hand seems pretty indifferent to anything I do. Sometimes I think she secretly resents ever having kids... but that's a whole other story in itself!