Why are people so fascinated with the career I'm pursuing?

Yesterday I went to a dinner party hosted by a family member. He invited a lot of people who I wasn't familiar with, so I was introduced to tons of new faces. My family members kept introducing me to people all evening and they said 'This is Kristen and she's going to be a mortician' and words along those lines.. I was kind of embarrassed due the fact that I don't think it was any of their business to know what I'm going to be doing for a living. This is going to be my last year in mortuary science. So I'm not an official mortician but I will be in no time. My other question is that why do they have the need to tell others this? Are they proud or something? When I speak to others I don't mention I'm going to be a mortician? When people DO ask what I'm going to be, I don't hesitate to tell them.