None of their business, particularly where someone also has access to my identity. There are some other questions I skip too depending on my mood.
Meh, Ok. That's your right!
OP, let us know what kind of entertainment system company/product your son comes up with for the assignment. I think a lot of the responses from this site will be skewed though. You have a primarily older generation that put less emphasis on music/entertainment in general. If we were all college hippies, responses would be a lot different!