My family is very supportive. My 2 aunts are working in technical fields, and at least 2 of my cousins are working in IT and one cousin is studying CS too. My dad works in IT and since I started my studies he always talks to me about his work, when he finds errors and bugs and rants about his colleagues :D He also helped me debug some code. My mom is supportive too, but sometimes when I mention to her that this and that is hard she goes: "Oh, what did you choose?" (Rhetorical question)
But all in all I'm happy. Reactions of "outsiders" are those which bother me sometimes. But that's a different story.