Welcome!
Welcome to the Swamp. Taking the shuttle is generally a good idea, but even the shuttle will be stuck in traffic for a while unless you leave early or very late. There are some good things to see around the stadium, like the statues and the sports center. You can stop by the Swamp restaurant, but most of the bars are not entirely kid friendly. If you get there early, you can check out some of the campus, which is pretty nice to the South and East of the stadium.
You generally won't get too razzed around the stadium, although there are jerks in every fan base, but you will get razzed walking along University by the student getto. It's generally a pastime of the student who live there to sit on the lawn and talk smack with the opposing fans. Good luck and I hope your family enjoys the game (other than the score).