Depending on how close to the Gulf they are shrimp could be fairly inexpensive there. Asking for shrimp scampi is healthier than asking for the typical junk food kids ask for.
I think a lot of the problem with the obesity factor in general is High Fructose Corn Syrup and partially hydrogenated fats that is in everything processed, even foods that shouldn't have HFCS have it. Kids diets today are nothing but highly refined shots of sugar all day long which keeps the pancreas pumping out insulin to handle the loads.
Good point about shrimp being inexpensive there. And yes it is a great diet meal.
Don't agree with the HFCS theory--you'd have to disprove the sheer lack of exercise first. Kids don't have playgrounds anymore because of lawsuits. Someone on FR was telling me about how some kids can't even have friends over anymore because if something happened to the friend, the parents would be hit with lawsuits. Kids aren't allowed to be kids. Etc etc.