Don't get wrapped around the axle about the whole officer first, pilot second thing. Especially based on some crap your dad said because he read a book or two. The shit they say in military books and the actuality of being in the military are two different things. Just gey commissioned, do a good job in flight school, be happy with whatever it is that you select to fly, and be a good dude who takes care of his peers and his enlisted. Everything will work out in the end.