Been traveling with the kids since they were a few months old, only serious problem was when the oldest caught Norovirus on the first big trip down to Florida. He was about 9 months old and just got super sick at dinner in Macon Georgia, couldn't get him to keep anything down, even Pedialyte popsicles were coming up. Had to call the pediatrician for advice, they wanted us to bring him in (a bit hard at 800 miles), then recommended some products to try. He ended up recovering MUCH faster than I did, once we got to Grandma's house and I came down with it I was out for most of our week there.
Since then we've done 5-10k miles a year and more weekends of camping then I can count (once spent 20% of a 7 month span in a tent), kids love the outdoors and I'm sure they're lifelong outdoorsmen.