If the parent(s) were in the military, one would hope that the child(ren) would follow in the parental foot steps and choose the same branch. At the end of the day though the parents should be proud that their children have decided to serve.
Not really, but my son will talk to all the branches to make his choice and compare the options before just deciding on one particular branch. I will be with him during each meeting. In the end, I would just be proud that he served his country.