Why I think Civic Engineering it's my tip?

When I started this program i was only thinking about studying civic engineering, but now that I have done all this program I have been thinking about studying civic and mechanical engendering.  But why did I started with one engineering and after this program  with 2 engineering?. Well , after going to the automobile company I like allot the research  that they were doing. I like a lot automobiles and the performance of the cars, airplanes and race cars. And the other engineering I'm interest in is civic engineering, because my dad owns a company that makes big buildings and I like what they do a lot and that's why I want to be like him. I have been working for my dad a lot and helping him on his work. I have gone to the constructions with him sow I can watch what he does on a normal day of work and getting me more interested in that tip of engineering.   On the other hand nobody  in my family have study mechanical engineering, and I got interested on it my own  with it.  But I still think that civic engineering it's my ideal tip of engineering.