Don't feel bad about that! My dad didn't know what the hell I was talking about when I was learning C++ as a teenager, but he asked anyway because he saw I got excited about it.
My mom certainly does that for me. I try to explain non-intuitive programming concepts to her with analogies, but I don't think I succeed most of the time. I love her dearly for putting up with it, though.
Wow, more parents should be like that! I'm not a parent, but I try to do the same kind of thing for friends and coworkers in hopes of spreading the idea that others' interests are worth attention and respect even if you don't share them.